Manual de Instalacion d Elos Filtros Lakos Modelo Sst

8/9/2019 Manual de Instalacion d Elos Filtros Lakos Modelo Sst

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LIQUID-SOLIDS FILTRATION

1

SAND MEDIA FILTERATION SYSTEMSINSTALLATION, OPERATION, MAINTENANCE & TECH

MANUAL


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LAKOS would like to thank you for your recent purchase of an SST/PRO Sand Media

Filtration System

LAKOS SST/PRO Systems set the industry standard for operating performance,

backwashing efficiency and the maximum use of sand media filtration surface area.Designed for the removal of small partials, organics and floating contaminants to protectdrip and micro-irrigation systems. Capable of applications virtually wherever light

weight contaminants are a problem. We encourage you to familiarize yourself with thesimple operation and maintenance techniques described in this manual to insure

continued optimum performance of you LAKOS filter system.

A division of

CLAUDE LAVAL CORP.1365 N. Clovis AveFresno Ca, 93727

This manual contains the information needed to successfully install, operate and

maintenance your filtration system.

Please read the entire manual before proceeding with installation and or operationof your system.

Be sure you are familiar with the operation and maintenance functions that you will

be performing with you filtration system.

This manual should be keep for future reference and diagnostic tool for the future.


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TABLE OF CONTENTS

Principles of Operation………………………………………4-7

Installation Profiles and Parts………………………………..8-48

Installation Procedures………………………………………49-51

Start-Up Procedures………………………………………...52-53

Repair and Recommended Maintenance Schedule………...54-56

Troubleshooting……………………………………………57-59

General Specification……………………………………...60-61


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4

PRINCIPLES OF OPERATION

The Filtering Process engages the use of a specified sand media (see litature) to trapforeign matter on the surface layer, allowing filtered water to percolate through thesurface sand media and LAKOS internal v-slotted lateral assembly, discharging at the

bottom of each tank to the outlet manifold. The process is described in the belowillustrations.

The Backwash Cycle flushes trapped debris from the sand media and out of the filter

tanks. Each tank in a LAKOS System is flushed individually for maximum agitation ofthe sand media. Backwash is triggered by pressure differential, elapsed time, ormanually, each tanks backwash valve is alternately activated into the back wash mode,

which simultaneously interrupts inlet flow to that particular tank. Overall system pressure then directs partial system flow back into and through the tanks lateral assembly.

Flow continues for a prescribed period of time ( typically two minutes), suspending theforeign matter and carrying it out through the tanks top port (normally inlet) and out

through backwash valve and piping. The backwash valve then returns to its original position and restores the now “clean” filter to normal service as seen below.


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The Key to Media Filtration is the effective removal of the captured contaminants from

the media bed; this process is commonly called “backwashing”. Located on the bottomof every LAKOS filter System is an exclusive, precision-engineered under drain system.Encourages optimum/even flow across the entire media surface area. No dead spots.

Industry-best backwash characteristics for more thorough cleaning and longer operatingcycles.

Exclusive LAKOS Under Drain System. Header is schedual-40 PVC pipe. Slotted

laterals feature PVC well screen with internal v-slotting for maximum backwash performance. Zero flow-through pressure resistance for longer operating cycles & less backwashing, minimum collapse strength of 135psi (9.3 bar).

The Backwash Throttle Valve is placed on the backwash discharge manifold to controlthe volume of water that can escape during backwash. Obtaining the proper flow rate ofthe backwash water is essential for effective flushing of the media. Too high of a flow

will flush all of the media out of the tank. Too low of a flow will not allow the media togently lift, fluidize and flush filtered particulates from the media in the system. The

proper flow rate is dependent on the size of the tank being flushed, this is show in table(). The most common way to adjust the backwash throttle valve is to manually set onefilter to backwash with the throttle valve fully closed. Slowly open the throttle valve

until small amounts of media are evident in the backwash discharge. It is desirable tohave a slight amount of media discharge during backwash. You should expect to lose

several inches of sand per year with proper backwashing. Although the media fills 2/3rd of the tank, it makes most sense to try to keep the contamination in the top two inches ofthe media bed. This will allow you to quickly rinse the sand during the backwash

sequence. If the media contamination reaches depths bellow two inches, it will take amuch longer backwash to rinse the media. This can also cause contamination of the

under drain of your filter system. Proper backwash frequency must be determined tominimize contamination and clogged under drains.


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6

The Backwash Frequency is dependent upon the characteristics of the contaminants

present in the water source. Although the automated backwash controller is equippedwith a logic circuit to initiate a backwash when the pressure differential across the filtersreaches a given level, ( typically 4-6psi higher than when the tanks are clean), it is often

times more desirable to initiate the backwash before it reaches this point. Very fine silt;for example, are able to migrate deeply into the media bed before an appreciabledifferential can be reached, and thus becoming difficult to remove. Algae and other

organic matter tend to harden and cake with time, cementing the top layer of mediatogether. If not flushed daily this could pose a problem. It is recommended by LAKOS

that the system time should be set to flush once daily as a minimum. For heaver solidloads the filter may have to be set to backwash every two to four hours for propercleaning of the media. In many instance water quality can change through out the year,

adjustments to the system are recommended to compensate for these changes ofconditions.

The Backwash Duration is dependent upon the characteristics of the contaminants andthe backwash frequency. A 120 second flush duration should be adequate to flush the

media bed of debris if the frequency is set properly. Longer durations may be required ifthe backwash line does not run clean for at least 10-15 seconds before valve is signaled to

close. The backwash duration should have sufficient duration to remove all thecontaminants from the media bed.

The Operational Speed of the Backwash Valve is a critical factor in determining the

backwash duration. When the valve is signaled to open and the actuator diaphragm isfilling pushing the valve piston back, unfiltered water is able to pass underneath the valveseals and escape into the backwash manifold. To the untrained eye it appears the filter isflushing, although it is not. Backwashing does not begin until the piston and the valve

are fully seated against the intake port closing of the high pressure unfiltered water. Onlythen can the lower pressure filtered water from the bottom of the filter can escape through

the backwash manifold, carrying with it the filtered contaminants. A new backwash valewith good system pressure (25-65psi) will fully open in 10-15 seconds. Older valvesoperating in harsh conditions may take longer due to wear of the bushing and o-rings.

The filter for the hydraulic system requires to be cleaned periodically. This is to ensurethat the valve piston is receiving high pressure from the inlet manifold of the system. It is

not uncommon for the system to have slow actuating valves due to low pressure to thevalve piston. This also causes the backwashing of the system to be incomplete. Regularinspections of the system will point out this problem.


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The Dwell Time Setting on the automatic controller allows you to select the amount of

time the controller waits for one valve to close before signaling the next valve to open.This enables you to adjust for the slow-acting valves or allows the irrigation system torebuild pressure between flushes. If the system pressure drops to a point where it is

affecting filtration backwash capacity, it may be necessary to place a pressure sustainingvalve on the discharge side of the filtration system. This will automatically partiallyclose of the flow on the discharge of the system, allowing pressure to build and be

sustained at a preset level.

Periodic Inspections of Media. To begin drain the filters and remove the manwaycovers to expose media. Inspect the media at this time by dig down and look for claylenses, mud balls, and media level that may indicate improper backwashing. If there is

any evidence of the contaminant reaching the bottom of the tank the backwash durationshould be increased as necessary. In the case of extreme contamination the filter media

will need to be replaced (Please Note: LAKOS Media Systems do not use Gavel).LAKOS recommends that the media should be inspected twice a season. LAKOS isaware that media can last several seasons but recommends changing media every other

season for optimum performance.


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I nstallation Profi les & Parts


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TANK CONFIGURATIONS


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ACCESSORIES

1. High pressure shut-off switch on inlet, pre-set at the filter’s maximum operating pressure.

2. Continuous acting air vent on inlet.

3. Pressure relief valve on inlet, pre-set at the filter’s maximum operating pressure.4. Static air vent on backwash manifold.

5. Sight tube on backwash manifold.6. Backwash flow control valve.7. System isolation valve on filter discharge.

8. Flow meter on discharge.


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GROOVE NIPPLES CS

SIZE LENGTH PART # LIST PRICE

2” 3” 101665 14.25

3” 3” 101666 17.074” 3” 106577 22.07

5” 4” 101667 34.25

6” 4” 106583 36.50

8” 4” 101668 62.51

10” 4” 101669 67.50

12” 4” 101670 72.00

GROOVED CAPS SS

SIZE LENGTH PART # LIST PRICE

3” 3” 114170 50.00

4” 3” 113693 66.75

6” 3” 113694 76.25

8” 3” 113695 90.00

10” 3” 113696 120.00

12” 3” *** 140.00


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GROOVE NIPPLES PVC

SIZE LENGTH PART #

2” 3” 106568

3” 4” 1065714” 4” 106578

5” 4” 106582

6” 4” 106584

8” 6” 106587

10” 6” 101663

12” 6” 101664

GROOVE NIPPLES SS

SIZE LENGTH PART #

2” 3” 1065693” 3” 106573

4” 3” 106579

6” 4” 106585

8” 4” 106588

10” 4” 106591

12” 4” 106594


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CONE STRAINERS(WITH SCREEN)

SIZE PART #

4” 119208

6” 119209

8” 119210

10” 119211

12” 119212

SIGHT GLASS(FROST)

COMPLETE UNIT

SIZE PART #

1 ½” 106279

REPLACEMENT GLASS

SIZE PART #

1 ½” 106275


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ONLY 50 MESH

SIZE PART #

4” 107810

6” 107811

8” 107812

10” 107813

12” 107814

SIGHT TUBE

SIZE LENGTH PART #2” 8” 107925

3” 8” 107926

4” 8” 107927


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GROOVE COUPLING

GROOVE COUPLING-REDUCING

SIZE PART #

2” 1057563” 105758

4” 105761

5” 105764

6” 105765

8” 105767

10” 105768

12” 105770

SIZE PART #

4x3 105763

5x4 117888


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GROOVE COUPLING GASKETS

QUICK DISCONNECT GROOVECOUPLINGS

SIZE PART #

3” 105759

4” 105762

SIZE PART #

2”

3” 106140

4” 106141

5”

6” 106142

8” 106147

10” 106149

12” 106150


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CONTROLLER KIT

KIT PART # 103417

PRESSURE DIFFERENTIAL SWITCH KIT(AUTO)

KIT PART # 106432

ITEM DESCRIPTION PART #

1 1/8” STRAIGHT COUPLING 108027

2 1/8” 45 DEGREE ELBOW 105882

3 1/8” x 3/8” POLY ADAPTER 105024

ITEM DESCRIPTION PART # LIST PRICE

1 1/8” STRAIGHT COUPLING 108027 2.60

2 1/8” 45 DEGREE ELBOW 105882 2.90

3 1/8” x 3/8” POLY ADAPTER 105024 2.60

4 MURPHY PRESSURE DIFF.SWITCH

107833 146.66


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WATER UPTAKE KIT

KIT PART # 123247


1 BUSHING, REDUCER, ¾” x ¼” STD MPT x FPT 119434

2 COUPLING, NPT FULL, ¾” STD, PVC 123246

3 ELBOW, TUBE x MPT, 3/8” x ¼ 90 DEG. POLY 111063

4 FILTER, SPIN-CLEAN, ¾”, 100 MESH, ABS 123245

5 NIPPLE, NPT, ½” STD x 1-1/2” TBE, A-53 106608

6 REDUCER, BELL, ¾” x ½” NPT, GALVANIZED 115145

7 VALVE, BALL, ½” 2 WAY 150# FPT, BRASS 108032


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AUTOMATIC SOLENOID VALVE KIT12V-DC

KIT PART # 106434 ITEM DESCRIPTION PART #1 TEE, ¼” x 3/8” POLY 107914

2 ELBOW, ¼” x 3/8” POLY 111063

3 VALVE, SOLENOID 108131

4 NIPPLE, ¼” x 1 ½” S.S 106600

SOLENOID BODY ONLY 105371

12 VDC COIL ONLY 105719

AUTOMATIC SOLENOID VALVE KIT24V-AC

KIT PART # 101944 ITEM DESCRIPTION PART #1 TEE, ¼” x 3/8” POLY 107914

2 ELBOW, ¼” x 3/8” POLY 111063


4 NIPPLE, ¼” x 1 ½” S.S. 106600


24 VAC COIL ONLY 105720


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AUTOMATIC SOLENOID VALVE KIT12V-DCL (LATCHING)

KIT PART # 112105


1 TEE, ¼” x 3/8” POLY 107914

2 ELBOW, ¼” x 3/8” POLY 111063


4 NIPPLE, ¼” x 1 ½” S.S. 106600


12 VDCL COIL ONLY 105718

MANUAL VALVE KIT

KIT PART # 106438


1 TEE, ¼” x 3/8” POLY 107914

2 VALVE, BALL, ¼” 3-WAY SS 1080313 ELBOW, ¼” x 3/8” POLY 111063

4 NIPPLE, ¼” x 1 ½” S.S. 106600


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INLET PRESSURE GAUGE KIT(AUTO/MANUAL)

KIT PART # 106433 ITEM DESCRIPTION PART #

1 GAUGE, 0-100 psi PRESSURE 106264

2 ELBOW, ¼” STREET, SS 103326

3 REDUCER,BUSHING, ½” x ¼” 105556

OUTLET PRESSURE GAUGE KIT(MANUAL)

KIT PART # 103311 ITEM DESCRIPTION PART #


2 BUSHING,REDUCER, ½” x ¼” 105556


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OUTLET GAUGE KIT(AUTO)

KIT PART # 106437



2 TEE, ¼” MALE RUN, BRASS 107886

3 ADAPTER, ¼” x 3/8” POLY 105027


SINGLE PRESSURE GAUGE KIT(OPTIONAL)

KIT PART # 112553

ITEM DESCRIPTION PART #1 GAUGE, 0-100 psi PRESSURE 106262

2 VALVE, BALL, ¼” 3-WAY 108031

3 NIPPLE, ¼” x 1 ½” S.S. 106600

4 ELBOW, ¼” x 3/8” POLY 111063

5 TUBING, 3/8” x 5’ ,POLY 107929

6 TEE, ¼” MALE RUN, BRASS 107886



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CONTROLLER MOUNT ASSEMBLY36-48 TANK

ITEM QTY DESCRIPTION PART #

1 1 TEE, BRACKET, SS 112542

2 2 BOLT, HEX, ¼-20 x ¾”, SS 105373

3 2 NUT, HEX, ¼-20, SS 106767

4 1 TANK, LEG BRACKET, SS 105702

5 4 BOLT, HEX, 3/8-15 x 1 ½”, SS 114370

KIT PART # 105149

CONTROLLER MOUNT ASSEMBLY15-30 TANK


1 1 TEE, BRACKET, SS 112542

2 2 BOLT, HEX, ¼-20 x ¾”, SS 105373

3 2 NUT, HEX, ¼-20, SS 106767

4 1 TANK, LEG BRACKET, SS 105703

5 4 BOLT, HEX, 3/8-16 x 1 ½”, SS 114370

KIT PART # 101257


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SOLAR CONTROLLER MOUNT ASSEMBLY36-48 TANK


1 1 TEE BRACKET, SS 112543

2 4 BOLT, HEX, ¼-20 x ¾”, SS 105373

3 4 NUT, HEX, ¼-20, SS 106767

4 1 TANK LEG BRACKET, SS 105702

5 4 BOLT, HEX, 3/8-16 x 1 ½”, SS 114370

KIT PART # 114429

SOLAR CONTROLLER MOUNT ASSEMBLY15-30 TANK


1 1 TEE BRACKET, SS 112543

2 4 BOLT, HEX, ¼-20 x ¾”, SS 105373

3 4 NUT, HEX, ¼-20, SS 106767

4 1 TANK LEG BRACKET, SS 105703

5 4 BOLT, HEX, 3/8-16 x 1 ½”, SS 114370

KIT PART # 105150


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SOLAR PANEL

PART # WATTAGE

106830 5 WATTS

F-22W 22 WATTS

SOLAR PANEL BRACKET

PART #

105534


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BATTERY BOX

PART #

105508

BATTERY – 12 VOLT

PART #

105357


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SOLAR OPTION

(COMPLETE SYSTEMS)

MODEL#

NO.OF

TANK

S

*F2-2-S 2F3-2-S 2

F3-3-S 3

F4-4-S 4

F8-5-S 5

F8-6-S 6

F8-7-S 7

F8-8-S 8

F12-9-S 9

F12-10-

S

10

F12-11-S

11

F12-12-

S

12

* F2-2-S USES F-2 9V

DCL CONTROLLER

SOLAR PACKAGES INCLUDE:

SOLAR PANEL

LATCHING CONTROLLERBATTERY

BATTERY BOXSOLAR PANEL BRACKETMOUNTING ASSEMBLY

LATCHING SOLENOIDS

(NO DCL SOLENOIDS)15” – 30” 114464 Part # systemkit*

ADD: DCL SOLENOID KIT P.N. 112105 PLUS

CONTROLLER TIMES NUMBER OF TANKS.


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CONTROLLER OPTIONS

CONTROLLER

MODEL #INPUT OUTPUT SOLENOID MATCH-UP

PART

NO.

F-2 AC/DC 110 VAC/12VDC 12 VDC/24 VAC 12 VDC 105728

F-2 230/AC/DC 230 VAC 50/60Hz 12VDC/24VAC 12VDC 105729F-2 DCL 9V BATTERY 12 VDCL 12VDCL 105730

F-3 AC/DC/DCL 110VAC/12VDC 12VDC/24VAC/12VDCL 12VDC/24VAC/12VDCL 112506

F-3 230AC/DC/DCL 230VAC 50/60Hz 12VDC/24VAC/12VDCL 12VDC/24VAC/12VDCL 105736

F-4 AC/DC/DCL 110VAC/12VDC 12VDC/24VAC/12VDCL 12VDC/24VAC/12VDCL 113846


F-8AC/DC/DCL 110VAC/12VDC 12VDC/24VAC/12VDCL 12VDC/24VAC/12VDCL 113847







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MANIFOLDS

MODEL P/N P/N A B C D E F F

INLET OUTLET (TOP) (BOT)

15-2-3” 113249 113254 3 24 18 3 3½ ½ 1½

18-2-3” 111696 111697 3 26 21 3 3½ ½ 1½

18-3-3” 112532 112531 3 52 23 3 3½ ½ 1½

18-4-4” 4 75 23 3 3½ ½ 1½

24-2-3” 111700 111701 3 33 27 3 3½ ½ 1½

24-3-3” 112011 112012 3 60 27 3 3½ ½ 1½

24-2-4” 112009 112010 4 33 27 3 3½ ½ 1½

24-3-4” 111704 111705 4 60 27 3 3½ ½ 1½

24-4-4” 102928 112156 4 86 27 3 3½ ½ 1½

30-2-3” 111707 111708 3 39 33 3 3½ ½ 1½

30-2-4” 111882 111883 4 39 33 3 3½ ½ 1½

30-3-4” 111770 111771 4 72 33 3 3½ ½ 1½

30-3-6” 113703 113704 6 72 33 3 3½ ½ 1½

36-1-4” 117827 117828 4 8 N/A 3 3½ ½ 1½

36-2-4” 111729 111730 4 48 39 3 3½ ½ 1½

36-3-4” 118297 118298 4 83 39 3 3½ ½ 1½

36-1-6” 4 9 N/A 3 3½ ½ 1½

36-1-6” x48 113248 6 48 N/A 3 3½ ½ 1½

36-2-6” 114240 114241 6 48 39 3 3½ ½ 1½

36-3-6” 111924 111925 6 83 39 3 3½ ½ 1½

36-4-6” 115747 115748 6 122 39 3 3½ ½ 1½


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MANIFOLDS

MODEL P/N P/N A B C D E F F

INLET OUTLET (TOP) (BOT)48-1-6” 111982 112124 6 9 N/A 4 5½ ½ 1½

48-1-6”x52” 112460 112460 6 52 N/A 4 5½ ½ 1½

48-2-6” 111751 111752 6 60 52 4 5½ ½ 1½

48-2-6x59” 112228 112193 6 67 59 4 5½ ½ 1½

48-3-6” 111698 111699 6 113 52 4 5½ ½ 1½

48-3-6”x59” 116432 6 120 59 4 5½ ½ 1½

48-3-6” SOL 112590 118214 6 113 52 4 5½ ½ 1½

48-4-6” 101586 112140 6 165 52 4 5½ ½ 1½

48-1-8” N/A N/A 8 9 N/A 4 5½ ½ 1½

48-1-8”x52” 113226 113226 8 52 N/A 4 5½ ½ 1½

48-2-8” 113588 113589 8 60 52 4 5½ ½ 1½

48-3-8” 111757 111758 8 113 52 4 5½ ½ 1½

48-4-8” 111755 111756 8 165 52 4 5½ ½ 1½

48-4-8”x59” 111203 113719 8 172 52x59 4 5½ ½ 1½

48-2-10” 116547 116548 10 60 52 4 5½ ½ 1½

48-3-10” 112782 113585 10 113 52 4 5½ ½ 1½

48-3-10”x59” 111945 112227 10 67 59 4 5½ ½ 1½

48-4-10” 112586 112585 10 165 52 4 5½ ½ 1½48-4-10”x59” 111944 112226 10 172 52x59 4 5½ ½ 1½

48-5-10” 111753 111754 10 217 52 4 5½ ½ 1½

48-5-10”x59” 112230 112231 10 224 52x59 4 5½ ½ 1½

48-6-10” N/A N/A 10 268 52 4 5½ ½ 1½


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CONNECTING TEE

MODEL PART # A B C D E F4x4x4” 113113 35 6½ 4 4 2 8½4x4x6” 111430 35 6½ 6 4 2 8½

4x4x8” 101932 35 6½ 8 4 2 8½6x6x4” 35 6½ 4 6 2 8½

6x6x6” 113104 48 7 6 6 2 126x6x8” 107908 48 7 8 6 2 12

6x6x10” 111984 48 7 10 6 2 126x6x12” 104549 48 7 12 6 2 126x6x14” 48 7 14 6 2 12

6x8x10” 48 7 10 6x8 2 128x8x8” 112002 48 7 8 8 2 128x8x10 107909 48 7 10 8 2 12

8x8x12” 101588 48 7 12 8 2 1210x10x10 116210 48 8 10 10 2 13

10x10x12” 111154 48 7 12 10 2 12

Part number is the same for inlet and outlet connecting tee


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CONNECTING CROSSES

MODEL PART # A B C D E F6x6x6x6” 116883 48 7 6 6 2 14

6x6x8x8” 115094 48 7 8 6 2 146x6x10x10” 114295 48 7 10 6 2 146x6x12x12” 114182 48 7 12 6 2 14

6x10x12x12” 48 7 12 6x10 2 146x6x8x10” 115730 48 7 8x10 6 2 14

6x6x14x12” 48 7 14x12 6 2 146x6x14x14” 48 7 14 6 2 1410x10x12x14” 116561 48 7 12x14 10 2 14

10x10x14x14” 116563 48 7 14 10 2 14

Part number is the same for inlet and outlet connecting cross


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CROSS OVER TEES

MODEL PART # A B C D E F6x6x8”IX 116059 38¾ 7 8 6 2 126x6x8”OX 116060 58 7 8 6 N/A 12

6x6x10”IX 113114 38¾ 7 10 6 2 126x6x10”OX 111917 58 7 10 6 N/A 12

8x8x10”IX 113105 38¾ 7 10 8 2 128x8x10”OX 113106 58 7 10 8 N/A 128x8x12”IX 112440 38¾ 7 12 8 2 12

8x8x12”OX 112441 58 7 12 8 N/A 1210x10x10”IX 113587 38¾ 8 10 10 2 12

10x10x10”OX 113586 58 8 10 10 N/A 1210x10x12”IX 111869 38¾ 8 12 10 2 1410x10x12”OX 113107 58 8 12 10 N/A 14

10x10x14”IX 117247 38¾ 8 14 10 2 1410x10x14”OX 117236 58 8 14 10 N/A 14

Cross over tees are used for joining 2 banks of center-feed tanks in the “H”configuration and are optional equipment for “H” pattern systems.

IX = Inlet OX = Outlet


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END FEED CROSS-OVER TEE

MODEL PART # A B C D E F

6x6x10”-IX 111887 62 10 6 52 ? 6 2

6x6x10”-OX 113108 80 10 6 72 6 28x8x10”-IX 113109 62 10 8 50? 8 28x8x10”-OX 113110 80 10 8 72 8 2

8x8x12”-IX 103303 62 12 8 50? 8 2

8x8x12”-OX 113111 80 12 8 72 8 210x10x12”-IX 116168 62 12 10 48? 10 210x10x12”-OX 116169 80 12 10 72 10 2

I X = I nlet OX = Outlet


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GROOVED BOTH ENDS NIPPLES NIPPLES LENGTH FOR “H” PATTERN SYSTEMS ON 6’ CENTERS

MODEL PART # A B

6 x 58” IX 116395 58” 6”8 x 38” IX 114462 38” 8”

8 x 58” OX 120741 58” 8”10 x 38”IX 38” 10”

10 x 58”OX 58” 10”12 x 38”IX 114265 38” 12”12 x 58”OX 114183 38” 12”

IX = Inlet OX = Outlet


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48” MANIFOLD


1 4 LATERAL UNDERDRAIN #1 102629





LATERALS W/MANIFOLD 105190

LATERALS ONLY


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45” MANIFOLD








LATERALS ONLY


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36” MANIFOLD








LATERALS ONLY


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30” MANIFOLD








LATERALS ONLY


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24” MANIFOLD






LATERALS ONLY


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18” MANIFOLD




LATERALS W/MANIFOLD 105184S

LATERALS ONLY


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15” MANIFOLD





LATERALS ONLY


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L0500 BACKWASH VALVEPN# 108029

ITEM DESCRIPTION PART NO.

1 BODY, VALVE, 3” BACKWASH, GRAY IRON CAST 105369

2 BOLT, HEX, 5/16-18 UNC-2A x 1-1/4, 316 SS 105383

3 BUSHING, GUIDE, BACKWASH VALVE, PVC 105546

4 DISC, PLUNGER, 3” & 4” BACKWASH VALVE, SS 304 105360

5 COVER, VALVE, 3” BACKWASH, ALUMINUM CASTING 105822

6 DIAPHRAGM, VALVE, 3” BACKWASH VALVE, NEOPRENE 105863

7 NUT, HEX, ¼-20 UNC-2B, 316 SS 106767

8 NUT, HEX NYLOCK, 3/8-16 UNC-2B, 316 SS 106791

9 O-RING, SHAFT, 568-112, BUNA-N 70 106825

10 PISTON, VALVE, 3” BACKWASH, GRAY IRON CAST 107169

11 SCREW, FLAT HEAD HEX SOCKET 10-32 UNC-2A x ¾, 18-8 10740712 SCREW, FLAT HAD HEX SOCKET, ¼-20 UNC-2A x ¾, 18-8 107399

13 SHAFT, VALVE, 3” BACKWASH, 304 SS 107712

14 SPRING, COMPRESSION, 3” BACKWASH VALVE, SS 107800

15 VULCANIZED, DISC, 2.80 OD SEAT, BLACK RUBBER 108139

16 WASHER, LOCK SPLIT, ¼”, 18-8 104018

17 WASHER, FLAT, 3/8”, 18-8 108149


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45

L0800 BACKWASH VALVEPN# 112860


1 BODY, VALVE, 4” BACKWASH, L-0801-B, GRAY IRON CAST 1053702 BOLT, HEX, 5/16-18 UNC-2A x 1-¼, 316 SS 105383

3 BUSHING, GUIDE, 4” BACKWASH VALVE, SS 304 101108

4 COVER, VALVE, 4 BACKWASH W/ ¼ TAP, GRAY IRON CAST 105823

5 DIAPHRAGM, VALVE, 4” BACKWASH, NEOPRENE 105864

6 DISC, SEAT, 4” BACKWASH VAVLE, ¼ THK RUBBER 105872

7 HOLDER, DISC, 4” BACKWASH VALVE, BRONZE CAST 106386

8 NUT, JAM, ¾-10 UNC-2B, 316 SS 103300


10 NUT, HEX, 5/16-18 UNC-2B, 316 SS 106769


12 O-RING, BUSHING, 568-016, BUNA-N 70 10682113 O-RING, SHAFT, 568-110, BUNA-N 70 106822


15 SCREW, FLAT HEAD HEX SOCKET, ¼-20 UNC-2A x ¾, 18-8 107399

16 SHAFT, STEM, 4” BACKWASH VALVE, SS TP 302 112462

17 SPRING, COMPRESSION, BACKWASH VALVE SF380 SS 107800

18 WASHER, DISC, 4” BACKWASH VALVE, 304 SS 108143

19 WASHER, LOCK SPRING, 5/16”, 18-8 111169

20 WASHER, FLAT, 3/8”, 18-8 108149


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46

L0801-A BACKWASH VALVE PN# 103335

* REPLACE ITEMS 13, 15, AND 16 WITH LO801-B ITEMS 12,13,15, AND 17.


1 BODY, VALVE, 4” BACKWASH, L-0801-B, GRAY IRON CAST 105370

2 BOLT,HEX, 5/16-18 UNC-2A x 1-1/4, 316 SS 105383

3 BUSHING, GUIDE, 4” BACKWASH VALVE, 304 SS 101108

4 COVER, VALVE, 4” BACKWASH W/ ¼ TAP, GRAY IRON CAST 105823


6 NUT, JAM, ¾-10 UNC-2B, 316 SS 1033007 NUT, HEX NYLOCK, 3/8-16 UNC-2B, 316 SS 106791

8 NUT, HEX, 5/16-18 UNC-2B, 316 SS 106769


10 O-RING, BUSHING, 568-016, BUNA-N 70 106821



*13 SHAFT, VALVE 4” NEW BACKWASH, 304 SS 107713

14 SPRING, COMPRESSION, BACHWASH VALVE SF 380 SS 107800

*15 VULCANIZED, DISC, 3.80 OD SEAT, BLACK RUBBER 108140

*16 WASHER, FLAT, 3/8”, 18-8 108149



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47

L0801-B BACKWASH VALVEPN# 108030


1 BOLT, HEX, 5/16-18 UNC-2A x 1-1/4, 316 SS 105383

2 BUSHING, GUIDE, 4” BACKWASH VALVE, 304 SS 101108


4 DIAPHRAGM, VALVE 4” BACKWASH, NEOPRENE 105864

5 BODY, VALVE, 4” BACKWASH, L-0801-B, GRAY IRON CAST 105370

6 NUT, JAM, ¾-10 UNC-2B, 316 SS 103300


8 NUT, HEX, 5/16-18 UNC-2B, 316 SS 106769


10 O-RING, BUSHING, 568-016, BUNA-N 70 106821


12 DISC, PLUNGER BACKUP, 4” BACKWASH VALVE 304 SS 104820

13 VULCANIZED, DISC, 3.80 OD SEAT, BLACK RUBBER 108140


15 SHAFT, VALVE, 4” NEW BACKWASH, 304 SS 10771416 SPRING, COMPRESSION, BACKWASH VALVE SF 380 SS 107800

17 DISC, PLUNGER, 4” BACKWASH VALVE, 304 SS 105361



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48

L0801-N BACKWASH VALVEPN# 101936


1 BODY, VALVE, 4 BACKWASH, L-0801-B, GRAY IRON CAST 105370

2 BOLT, HEX, 5/16-18 UNC-2A x 1-1/4, 316 SS 105383

3 BUSHING, GUIDE, BACKWASH VALVE, PVC 105546




7 NUT, HEX, 5/16-18 UNC-2B, 316 SS 106769



10 PLATE, DIAPHRAGM BACKUP, 304L SS 101113

11 PLUNGER, VULCANIZED, SS 10814012 SCREW, FLAT HEAD HEX SOCKET, #10-32 UNF-2A x ½, 316 SS 111781


14 SHAFT, STEM (L0801N), 4” BACKWASH VALVE, SS TP 302 112663

15 SPRING, COMPRESSION, BACKWASH VALVE, SF 380 SS 107800

16 WASHER, FLAT, 3/8”, 18-8 108149

17 WASHER, FLAT SPLIT, 5/16”, 18-8 111169


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50

7. Install Controller AssemblyLocate the controller on the opposite end of the Water-Uptake as seen on pages 8-9.

Slide the controller mounting bracket into position on the leg and adjust for desired position. Once desired position is obtained tighten bolts provide (Assembly is on

page 24). Box can now be mounted in position. Controller wiring instructions aresupplied with the controller package.

8. Install Water Uptake KitWater uptake is installed on the inlet manifold. A coupling is located on the end of

the inlet manifold for the uptake kit. Assembly of the kit is located on page 19.

Please note that large systems may use two uptake kits for operation.

9. Install Solenoid 3-Way Valve or Manual 3-Way ValveThese valves are located on the end cap of the backwash valve. Placement of valve

can be found on pages 8-9. Valve assemblies can be found on pages 20-21. Conduitand wiring is not provided local codes should be followed.

10. Install TubingTubing should be cut square and cleaned of debris to proper length. Nuts should be

loosened until three threads are visible. Tubing should the be wetted and pushed inuntil seated. Nuts are to be tightened by hand only. Follow installation profile on

pages 8-9.

(Installation for Pressure differential switch kit is on page 18)

Media Loading InstructionsRemove the hand hole cover and inspect the inside of the tank for debris. Inspect theunder drain for damage and make sure secure properly. Load selected media and fill 2/3rd

of tank or to the top of LAKOS decal. Media should not be dumped in but filled slowlyto prevent damage to under drain. LAKOS sand media filters operate efficiently with

single- grade sand media. No multi grade layering is required.


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51

PROPER INSTALLATION PHOTO


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52

Start-Up Procedure

In i t ia l Cleaning of Tanks

Start pump or open valve supplying pressurized water to the filters. The backwash valve previously set in the manual backwash mode (see detail, page 30) will open and begin a

backwash cycle. Open the backwash valve until a small amount of media is visible in theview tube. Initial flow through the filters may be sluggish for several cycles. To speed upthe initial cleaning of the tank, close the outlet valve until a healthy backwash flow

appears in the view tube. Wait approximately two minutes then rotate to a second tank byclosing the override screw on the first solenoid and opening the second. Repeat this

procedure until all filter tanks have been backwashed a minimum of three times.

BACKWASH ONLY ONE TANK AT A TIME!All tanks contain contaminants and fines prior to initial backwash. Flow through themedia system will be sluggish until some cleaning occurs. If, after three backwash

rotations, the tanks are not yet clean, continue with additional cycles until cleaningoccurs.

The backwash valves operate hydraulically and take 10 to 15 seconds to fully

open. While the valve is opening, flow through the backwash manifold will be higher

than normal. When the valve is fully open the flow will decrease and the backwash waterwill become dirty in appearance. Do not attempt to adjust the system until the valve isfully open. Early differential readings are not accurate until the system is fullyoperational. After the initial cleaning of the media filter, set regulators and repair any

leaks. When the system is operating properly, proceed with final adjustments.

Backwash Throttle Valve AdjustmentPre-set the controller for a 90 second backwash and a 30 second dwell time. Turn on

controller power and initiate a flush cycle (see controller instructions). Adjust the backwash throttle valve as follows:

During the flush cycle, check the backwash water through the view tube, or catch a backwash sample using fine sieve. Adjust the backwash throttle valve downward until

only a trace of media is being lost and the backwash valve is fully open. Use the fieldthrottle valve to direct additional flow for backwash. Adjust backwash flow until aminute loss media occurs. (In systems where backwash flow is inadequate, the throttle

valve must be adjusted in this manner each time a backwash cycle is initiated).


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53

Pressure Differential AdjustmentsThe pressure differential (P.D.) switch, located on the controller, measures the

differential pressure between incoming and outgoing pressure. When the difference between the two increases to a preset level, the switch signals the controller to begin a backwash cycle. The P.D. setting can be changed by adjusting the knob on the face of the

P.D. switch.

Scheduling Backwash CyclesThe quality of the source water will dictate the frequency required. A backwash cycleshould begin when the P.D. increases 4-6 lbs. above the “optimum system differential”

(the differential when all tanks are clean). Automatic systems are shipped with the pressure differential switch preset at 9 lbs. If the desired differential range is not met by

this setting, adjust accordingly

Backwash Flush TimeBackwash flush time is adjusted on the face of the controller. Start with a 90 secondsetting. Observe the water quality at the beginning and end of a backwash cycle through

the view tube or at the outlet of the backwash manifold. If the backwash water is stilldirty near the end of the cycle, increase the flush time. If the water appears clean severalseconds before the end of the cycle, decrease the flush time. In addition to the water

quality, check the pressure differential after backwash. If the P.D. has returned to the

optimum level, the flush duration is adequate. If not, increase the backwash duration untiloptimum differential is achieved.

Note : As the backwash valve open and closes, water from the backwash manifold is

mixed with incoming water from the inlet manifold. The first and last 15-20 seconds of flow will be diluted in this manner and is not representative.

Dwell TimeThe dwell between tanks enables the irrigation system pressure to recover before the next

tank flushes. This delay provides the system with a full head of pressure with which toinitiate flushing of the next tank. To adjust the dwell time, observe the backwash cycle of

the last tank in the battery. Calculate the length of time form the end of the cycle until themaximum system pressure is regained. This is approximate time that should be set asdwell time.


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54

REPAIR & RECOMMENDED MAINTENANCE

SCHEDULE

The following repair procedure and recommended maintenance schedule isrecommended by LAKOS. LAKOS makes recommendations from the years of

experience in this industry. The following is a guideline and can be modified to fit yourneeds.

BACKWASH VALVE REPAIR PROCEDURES

REMOVE THE BACKWASH VALVE FROM THE SYSTEM …

1. Begin by removing the back cover from the valve. This will eliminate the need to remove thesolenoid, conduit & wiring.2. Inspect the rubber diaphragm covering the piston. The “smooth and shiny” side of this

diaphragm should be facing the back cover of the valve; the cloth-like rough surface should be wrapped around the piston. Check for tears, wear or any holes in this part. Replace ifnecessary.

3. Loosen and remove the three grooved couplings to release the valve body from the tank andinlet/backwash manifolds.

INSPECT / REPLACE THE DISC …

1. Locate (from the backwash opening of the valve body) the 7/16-inch machined portion of the backwash valve’s shaft. Secure that shaft with a wrench to prevent it from rotating.

2. Using the appropriate ratchet with extension, enter the valve body from the inlet opening andloosen the end nut. Disc is removed via the valve’s outlet (to the filter tank).

3. Inspect the rubber on the disc. If it is worn, torn or deformed, it should be replaced.

REMOVE THE SHAFT …

1. This procedure will likely damage the diaphragm. Be prepared to replace the diaphragm.2. Grasp the piston and pull it straight out of the back of the valve body. The shaft will follow.3. Inspect the piston for damage of the epoxy coating. If any nicks or scratches are noted,

replace the piston.

4. To remove the shaft from the piston, first secure the center section of theshaft (where machined) with a 7/16-inch wrench to prevent rotation. Using a

5/32-inch allen wrench, loosen and remove the pan-head screw located onthe face of the piston.

5. Remove the spring. The spring should have a tension of approximately 60 to70 foot-pounds of pressure. Normal life expectancy is 5 to 7 years.Replacement during maintenance may be more cost-effective than trying to

over-extend the life of this part.

6. Remove the two o-rings on the shaft (these should be replaced wheneverservicing the valve) and inspect the shaft for any rough surfaces. Replace ifevident.

7. Wipe all re-usable parts with a clean cloth.


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55

RE-ASSEMBLING THE SHAFT …

1. Be sure that the shaft is clean and free of any debris in the groove. Carefully slide the o-ringonto the shaft and into the groove. Apply a small amount of petroleum jelly to lubricate theo-ring.

2. Clean the inside of the stainless steel bushing.3. Attach the shaft to the piston, using an allen wrench.4. Place the spring over the shaft, allowing it to rest on the inside of the piston.5. Guide the threaded end of the shaft through the bushing, using extra care when the o-ring

enters the bushing.6. Test the movement of the shaft in the bushing. It should glide smoothly, not allowing the o-

ring to slip out of its groove. If the o-ring does move, apply more petroleum jelly to the o-ring and shaft.

RE-ATTACHING THE DISC …

1. L-0801-A Valve: Position the stainless steel insert on the bevelled side of the disc against theflat surface inside the inlet of the valve body.

L-0801-B Valve: Position the stainless steel insert and rubber guard plateagainst the flat surface inside the inlet of the valve body.

2. Slide the shaft assembly from the backside of the valve body, through the backwash outletchamber and toward the backwash valve’s inlet. Attach the shaft to the disc, securing theshaft with a 7/16-inch wrench and tightening the lock nut onto the disc.

3. Apply pressure to the piston and again check the shaft for smooth travel through the bushing.

RE-ATTACHING THE DIAPHRAGM …

1. The diaphragm is marked to identify the “pressure side”, which should be the side facing therear of the valve (exposed to the solenoid). Avoid wrinkling or pinching the diaphragm

between the piston and the valve body.

2. At this point, re-install the backwash valve onto the filter tank and manifolds, using thegrooved-end couplings.

3. Align the holes on the lip of the diaphragm with the holes on the backwash valve body.4. Place the backwash valve’s back cover into position, being careful to keep the lip of the

diaphragm flat against the valve body (creating a gasket between the valve body and back

cover). The solenoid should be in the top (12 o’clock) position.5. Insert the bolts, slide on the lock-washers and secure the nuts to firmly re-attach the back

cover to the backwash valve.


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56

MAINTENANCE SCHEDULEAutumn Shutdown

1. Initiate a normal backwash cycle. “Caution” Do not add cleaners or additives ofany kind to the water system. Time the sequencing of the backwash valves,opening and closing speeds with a stop watch and make note of the time.

2. Disconnect power to controller.

3. Rinse and drain the all filters, manifolds, uptake kit, valves, ect. All aboveground components that may freeze.

4. Inspect and lubricate all filter backwash valves. Repair any discrepancies with

the valves

5. Brush any rust on carbon steel filters down to bare metal and paint for rust

prevention. Rust should be removed from stainless takes if present and sprayed orwiped with light oil.

Spring Start-Up

This procedure will follow the autumn shutdown of your system.

1. A general inspection of the above ground equipment needs to be conducted.Equipment and or parts that are in need of service or repair should be conductedat this time.

2. Start the system and initiate backwash with low pressure if possible (15-20psi).This is due to the draining of the tanks in shutdown. There is a reasonablelikelihood that there will be air trapped in the system. This air can disrupt the

sand bed during backwashing under high pressure.

Mid Season Inspection

1. Open the sand media tanks and inspect the media to determine if the backwash

sequence is correct.

2. Top-off sand level as needed.

General Inspections

The media system from time to time will need to be inspected. Check gauges, backwashcycle, hydraulic lines, and screens along with other components. The more diligent a

user is with his equipment the better it will perform. Checks are recommended everymonth.


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57

TROUBLESHOOTING

PROBLEM: POOR FI LTRATION

PROBABLE CAUSE

1. Excessive flow through filters, causing “coning” of media sand and/or forcing contaminantsthrough filter sand outlet

2. Air in tank(s) may cause disruption of the media sand bed.3. Incorrect media sand.4. Excessively high pressure differential before backwashing, which forces contaminants through

filter bed.

5. Insufficient volume of media in filter, which allows contaminants to pass through the system.

SOLUTION

1. Reduce flow rate or add extra filter tank(s). Review literature for flow recommendations.2. Bleed off trapped air in system.3. Replace with proper media sand. “ Consult distributor”

4. Backwash more often at lower differential pressure.5. Add media to tank(s) to specified level.

PROBLEM : CONSISTANTLY H IGH PRESSURE DI FF ERENTIAL

PROBABLE CAUSE

1. Excessive contaminant load restricts flow through the filters and prevents sufficient flow for backwashing.

2. Insufficient backwash flow.

3. Inadequate media sand volume, which may minimize coverage of backwash flow across filter bed,creating dead spots of accumulated contaminants.

SOLUTION

1. Drain tank(s) and remove hand-hole access ports. Carefully skim away any excess or cakedcontaminants from the media sand bed’s surface. Return tank(s) to normal service and backwash

system.

2. Readjust backwash or partially close field valve.3. Follow #1 and add media as necessary.

PROBLEM: M EDI A SAND APPEARS DOWNSTREAM PROBABLE CAUSE

1. Incorrect media sand (i.e. to fine).2. Broken, damaged, or missing lateral.

SOLUTION

1. Replace media with proper sized media.2. Repair or replace laterals of under drain.


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58

PROBLEM : BACKWASH VALVE(S) LEAKPROBABLE CAUSE

1. Obstruction in the valve seat.2. Rubber seating disc is worn or damaged.3. Diaphragmdamaged (Leaking from bleed port hole located on the piston chamber).

SOLUTION

1. Remove the obstruction.2. Replace seat disc.3. Replace diaphragm.

PROBLEM : WATER HAMMERPROBABLE CAUSE

1. Air in tanks.2. Long backwash line causing vacuum.

SOLUTION

1. Bleed of trapped air in system. (Air vent on system may be required)2. Install vacuum breaker on backwash line.

PROBLEM : INCREASING FREQUENCY OF BACKWASH CYCLE

PROBABLE CAUSE

1. Backwash flow or durat ion is not adequate to flush filter tanks of all contaminants.2. Insufficient sand volume.3. Increase concentration of contaminants in water supply.

SOLUTION

1. Readjust backwash flow or duration.2. Add media sand to achieve proper volume.

3. Adjust backwash to achieve more frequent backwashes.


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59

PROBLEM : AUTOMATIC BACKWASH FAI LS TO CYCLE

PROBABLE CAUSE

1. Controller power of or circuit breaker tripped.

2. Improper setting of differential switch.3. Soleniod(s) malfunctioning.4. Loss of sufficient pressure to actuate valve( s).

SOLUTION

1. Be sure wiring is connected correctly. Reset circuit breaker. Turn on power. Controller may bedefaulty and needs replaced.

2. Adjust as necessary. Typical is 6psi above clean tank differential.

3. Check connections, clean ports, and check for the sound of the solenoid actuating. Replace

solenoid if necessary.4. Check filter screen on uptake kit and hydraulic lines for clogs or brakes (leaks) (Replace as

necessary).


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Dimensions

End-Feed Installation Configurations

General Specifications

System ManfoldInlet/Outlet

GroovedCouplings

Page 2

Material Specifications

lter Tanks

tainless steel (304L) with grooved-

nd connections at inlet & outlet.

op inspection port features bolt-on

over. Lower clean-out port is

emale coupling with plug.

ackwash Valves

ast-iron body. Coated internal

ater-contact surfaces. Stainless

eel shaft & guide bushing. Stainless

eel disc with vulcanized Buna-Nubber to seal the backwash port.

ontroller

teel housing, water-resistant, key-

ck. Solid-state timing. Operates

om standard 110 VAC, 50/60 Hz.

onsult factory for 220 VAC, 12 VDC

attery or solar power.

ateral/Underdrain Assembly

eader is schedule-40 PVC pipe.

otted laterals feature PVC wellcreen with internal V-slotting;

inimum collapse strength of 135

si (9.3 bar).

Media Sand Options

equired media sand is not included

ith basic LAKOS Sand Media Filter

ystem. The following information is

rovided for guideline & reference

urposes only. Sand available from

AKOS and sources worldwide.

ltration Requirement Media Material

00 to 250 mesh/

5 micron #20 Crushed Silica

50 to 200 mesh/


30 to 140 mesh/


OTE: LAKOS Sand Media Filters operate

fiently with single-grade sand media. No

ulti-grade layering required.

Flow Range**

44-60

60-90

112-160

180-250

260-350

440-625

650-940

845-1240

1050-1550

1270-1870

1475-2200

1685-2510

2105-3140

SST-1503-2

SST-1803-2

SST-2403-2

SST-3004-2

SST-3604-2

SST-4806-2

SST-4806-3

SST-4808-4

SST-4810-5

SST-4810-6

SST-4810-7

SST-4812-8

SST-4812-10

10-14

14-20

25-36

41-57

59-80

100-142

148-213

192-282

238-352

288-425

335-500

385-570

480-715

U.S. gpm m3/hr

3-inch

3-inch

3-inch

4-inch

4-inch

6-inch

6-inch

8-inch

10-inch

10-inch

10-inch

12-inch

12-inch

300

500

900

1000

1800

2600

3900

5200

6500

7800

2565

2980

3700

181

227

408

454

816

1179

1769

2358

2948

3537

1165

1350

1680

100

100

100

100

100

80

80

80

80

80

80

80

80

7.0

7.0

7.0

7.0

7.0

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

Media SandRequirement***(complete system)

MaximumFilter TankPressure****

136

160

220

400

525

690

1075

1490

1850

2200

2965

3360

4010

62

73

100

181

238

313

488

676

839

998

1345

1525

1820

System Weight(without sand)

lbs. kg lbs. kgpsi bar

2.4

3.6

6.2

10.0

14.0

25.1

37.7

50.2

62.8

75.4

87.9

100.4

125.6

.2

.3

.6

1.0

1.3

2.3

3.5

4.6

5.8

7.0

8.1

9.2

11.6

FiltrationArea

ft2 m2

3-inch

3-inch

3-inch

3-inch

3-inch

4-inch

4-inch

4-inch

4-inch

4-inch

4-inch

4-inch

4-inch

MinimumBackwash

LineSize

* Model numbers identify individual tank size/diameter (first two numbers), inlet/outlet size (second two numbers) and number of tanks persystem (last number). Add an "A" at end of model number for an Automatic system. Add an "M" for a Manual system. NOTE: Standardautomatic systems are AC operation. Consult factory for DC, battery-operated and solar-powered systems.

** Flow range based on a filtration range of 18-25 U.S. gpm/ft2 (47-61 m3/hr/m2). Select a larger model if the water has an above-averagequantity of particulates/organics.

*** NOTE: 100 lbs. = 1 cubic foot = 1 standard size bag of media sand.

**** For higher pressure requirements, please consult factory. Note: Recommended operating pressure range for proper actuation of LAKOSBackwash Valves is 20-80 psi (1.4-5.5 bar).

Model*

Backwash Manifold(not included withstandard system)

AccessPort

BackwashDischarge

INLET

OUTLET


AccessPort

Backwash

Discharge

INLET

OUTLET


AccessPort

BackwashDischarge

INLET

OUTLET

Backwash Manifold

(not included with

standard system)

BackwashDischarge

Access

Port

INLET

OUTLET

Clean-outPlug

End-View

End-View Width

173⁄ 4-501⁄ 2

501⁄ 2

501⁄ 2

501⁄ 2

2-Tank*

3-Tank

4-Tank

5-Tank

432-1283

1283

1283

1283

in mm

Overall Length

33-100

152

204

263

838-2642

3962

5572

6833

in mm

Tank Qty.

*Dimensional range is given for tank sizes of 15-inch to 48-inchdiameter.

NOTE: Use 501⁄ 2 inches (1283mm) for all End-Feed and Center-Feed48-inch tank system end-view widths.


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Center-Feed Installation Configurations

H-Pattern Installation Configurations

Diagrams illustrate 4-10 tank systems. Consult factory for other requirements.

Diagrams illustrate 6-10 tank systems. Consult factory for other requirements.

INLET INLET

Dimensions

Overall L

159

211

211

263

263

6-Tanks

7-Tanks

8-Tanks

9-Tanks

10-Tanks

in

Tank Qty.

Overall Width (all 48-inch tank systems): 120 inches

Dimensions

Overall Le

211

263

315

367

419

471

523

4-Tanks

5-Tanks

6-Tanks

7-Tanks

8-Tanks

9-Tanks

10-Tanks

inTank Qty.

Overall Width (all 48-inch tank systems): 501⁄ 2 inche

INLET

OUTLETINLET

OUTLET

INLET

OUTLET

INLET

OUTLET

INLET

OUTLET

INLET

OUTLET

INLET

OUTLET

Documents

Manual de Instalacion d Elos Filtros Lakos Modelo Sst