High Rate Sand Filter

Owner’s ManualShould you the installer or owner be unfamiliar with the cor-rect installation or operation of this type of equipment youshould contact the distributor/manufacturer for the correctadvice before proceeding with the installation or operationof the product.

Relax - you’ve bought an Onga ...Congratulations on your decision to purchase an Onga

product. Onga is one of the best known companies in itsfield, with a proud local and international reputation.

In fact, wherever people need to move water from one point toanother - whether in leisure industry, horticulture, agriculture or inand around the home - Onga is a byword for reliability, value formoney and technological innovation. So why does Onga lead itsfield? Here are a few simple reasons ...

1. Continual Product ImprovementOnga employ the best engineers both in Australia and around theworld to develop new and better ways to pump and handle water.

2. Dedication to QualityThere is only one standard that we at Onga set ourselves for bothproduct quality and the quality of our service. That standard isexcellence ... to have no-one better than us at what we do ... nothingshort of that is acceptable.

3. A Fair PriceOnga products are neither the cheapest nor the most expensive intheir field. Our products do, on the other hand, always representvery good value for money - they always have and they always will.

4. Our Team of DealersWe believe Onga’s hand picked authorised dealer network through-out Australia and worldwide are second to none. We invest a hugesum training them and supporting them. They are your link to us,and we value their expertise and trust.

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IMPORTANT!The operator must be provided with this owner’s manual. This must be readbefore operation and followed during operation.These instructions are a guide only. Users not familiar with pool equipmentshould seek advice from suitably qualified persons with experience in poolequipment installation.

Onga Pantera High Rate Sand FiltersModels PSF21, PSF25, PSF31

Manufactured in Australia, the Onga Pantera sand filter is made from UV stabilisedhigh-density polyethylene. The reputation for durability and performance makes thePantera range first choice for quality pool builders.

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WARNINGDue to excessive cycling, this filter is not

suitable for use on inbuilt In-Floor CleaningSystems

Technical DataPSF21 PSF25 PSF31

Filter Diameter 21 inch 25 inch 31 inch

Filter Area Sq. M .204 .283 .493

Max. Working Pressure 280 kPa 280 kPa 280 kPa

Max. Flow (LPM) 171 243 411Minimum Flow for Back washing 125 173 301

Filter Height (to top of valve) 870mm 960mm 1110mmClearance required above filter for maintenance 600mm both models

Sand grade 0.8mm-1.5mm/16-40 (kg) 90 140 220Zelbrite (kg) 70 105 165

Valve size (inch / mm) 1.5 / 40 1.5 / 40 2 / 50Connection to suit PVC pipe internal 40mm 40mm 50mm

Pool volume @ 6 hour turnover (litres) 61,500 90,000 148,000

Filter Application - General Information

This filter is designed for use in domestic/residential swimming pool installa-tions with correctly sanitised fresh or salt chlorinated water. Suitable for usewith sand or Zelbrite filter media.

1) Locate the filter system as close to the pool as practical.

2) Place the filter on a level stable foundation, preferably a concrete pad orpaving.

3) Position all equipment to provide ease of access for future servicing.

4) Protect the filter and pump from weather and direct sunlight by ensuringthat they are properly housed.

5) Ensure there is sufficient space to provide adequate ventilation to electricpump motor.

6) Clean a new pool as well as possible before filling pool and operating filter.Excess dirt and large particles of foreign matter in the system can causeserious damage to the filter and pump.

7) Ensure pump is compatible with filter specifications.4

Seamless Filter body

Under-drain laterals

Stainless Steel filter clamp

Durable seals and gaskets

6 Position Multi-port Valve

Barrel union pipe connections

Large in-line sight-glass

Glycerine filled Pressure Gauge

This one piece roto-moulded design is thebenchmark for stability, strength and durability.Black in design, by choice, incorporatingincreased strength from naturally stabilisedmaterial.Designed to give you maximum performance, thewater filters down through the entire bed of sand togive superior filtration, for sparkling clear water.Stainless Steel provides high quality, strength andcorrosion resistance.Ultra low maintenance requirements, coupled withthe smooth operation of the Multi-port Valve whenrotating through its functions, gives you ‘as new’operation for years to come.Total flexibility of operation including rinse cycle,ensuring clear filtration and a waste cycle to allowfor easy disposal of excess debris.Quick easy connection and removal of pipe work.

Easily identifies the completion of the backwashcycle, limiting the amount of water wasted.Superior quality gauge with an extended life-span.

FEATURES BENEFIT

Multi-Port Valve Settings

WARNINGIncorrectly installed or tested equipment may fail, causingsevere injury or property damage. Read and followinstructions in owner’s manual when installing and operatingequipment.Have a trained pool professional perform all pressure tests.

Hazardouspressure

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Hazardous Pressure!Hazardous Pressure!Hazardous Pressure!Hazardous Pressure!Hazardous Pressure!Can cause severeCan cause severeCan cause severeCan cause severeCan cause severeinjurinjurinjurinjurinjury or majory or majory or majory or majory or majorproperty damage fromproperty damage fromproperty damage fromproperty damage fromproperty damage fromtank explosion.tank explosion.tank explosion.tank explosion.tank explosion.

Filter pumps requirehazardous voltagewhich can shock,burn, or cause death.

DANGER

WARNINGDisconnect power tomotor.

BEFORE WORKINGON FILTER:

BEFORE WORKINGON PUMP OR MOTOR

1. Stop pump2. Release all pressure from system, by turning valve handle to waste.

Filter Installation & Assembly of Internal Components

Installation of Filter should only be carried out by qualified personnel.Ensure that the under-drain assembly (hub, laterals & tube) are properlyassembled & installed prior to adding filter media (sand).

1) The filter internals comprise of a collector hub and eight (8) laterals, whichare supplied packaged separately with the collector hub and are stored insidethe filter tank prior to shipment.

2) Carefully inspect the laterals and hub prior to assembly for any visibledefects.

3) To assemble the laterals and hub please use the following steps:

For PSF21 & PSF25 Models only Push in and align the male tab on thelateral with the female slot in the hub. Rotate the lateral clockwise until thetabs engage with an audible “click”. Repeat this process for all 8 laterals.

For PSF31 model only Push in and align the female slot on the lateralwith the male tab on the hub. Rotate the lateral clockwise until the tabsengage with an audible “click”. Push in the tapered pin (8 supplied) to lockthe lateral in place. Repeat this process for all 8 laterals.

Important: Ensure slotted side of laterals face downwards from hub after final assembly, and prior to filling with sand.

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Hub Lateral Model P21 & P25

Hub Lateral Model P31

After alllaterals aresecurely insockets,positionassembly inthe centreon thebottom ofthe tank.

Assembly Continued

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Loading Sand Media

1) To keep sand out of collector assembly, place plastic sand shield over top ofcollector tube before pouring sand into filter (See diagram below).

2) To support laterals and prevent lateral breakage during loading, fill tankabout half full of water before loading sand.

3) Pour sand into filter tank, making sure that the sand is of the correct typeand quantity for the particular filter model. (Refer filter label).

Notice: Make sure gasket area on top of tank is free of sand before installing valveand clamp.

4) Before installing valve, double-check that correct quantity of sand has beenloaded.

5) Remove plastic sand loading shield and keep for future use.Installation of Multi-port Valve (See diagrams on page 8 - 9).

1) Install ‘O’ring on valve flange; make sure ‘O’ring is clean, and has nonicks, tears, or scrapes and lubricate with silicon based lubricant.

2) Make sure tank and valve flanges are clean and free of sand;put valve on top of tank. Vertical pipe of collector assemblyinserts into base of valve.

3) Install clamp; make sure knob is positioned for easyaccess for filter maintenance. Valve port labelled“PUMP” should point toward pump.

4) Tighten clamp knob until clamp ends (under bolt) are¼” (6mm) apart. Tap around outside of clamp with amallet to help seat clamp.

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Installation Continued

WARNINGHazardous pressure. Clamp will not hold unless it is seatedproperly! DO NOT START PUMP until clamp ends are ¼”(6mm) apart or less.

5) Connect pipe from pump discharge to valve port labelled “PUMP”; useunion half provided. Assemble union as follows for leak free operation;

· ‘O’ring and sealing surfaces must be clean· Assemble hand tight only (no wrenches)· NO pipe compound or teflon tape on unions.

6) Complete all plumbing connections, using 1½”(PSF21 &25) or 2” (PSF31)pipe to reduce pressure losses as much as possible.

· Pipe from valve RETURN port to pool return.· Pipe from valve WASTE port to waste.· Suction piping from pool to trap inlet on pump.

7) System is ready for start up.

8) If you notice a leak around the clamp area after 15 - 30 minutes of running,repeat steps 3 - 4.

If there are leaks from beneath valve/clamp area, STOPPUMP, release all pressure, remove clamp and valve andclean sealing surfaces.

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Installation Continued

Start up/Operation

WARNING Hazardous pressure. To avoid explosion and possiblesevere or fatal injury, filter system pressure must not exceed 40 psi (280 kPa)under any circumstances. NEVER test this filter system with compressed air;never operate system with water temperature above 350C.

CAUTION To prevent equipment damage and possible injury, turnpump OFF before changing valve position.

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NOTE: Do not add chemicals directly into the pool skimmer. Adding undilutedchemicals may damage equipment and void warranty.

1. Open system valve and make sure pump is filled with water. Make sure poolwater level is 2” (50mm) above bottom of skimmer opening.

2. With pump OFF, set valve to ‘BACKWASH’ position.

3. Start pump, circulating water through filter to waste.NOTE: To prevent pump from running dry, be sure water level never dropsbelow bottom of skimmer inlet. Add water to pool if necessary to keepskimmer flooded while back-washing and rinsing.

4. Backwash until water runs clear (1-5 minutes).

5. Stop pump; set valve to ‘RINSE’ position.

6. Start pump; run pump for 1 minute.Note: for Zelbrite repeat steps 1 through 6 three times.

7. Stop pump; set valve to ‘FILTER’ position.

8. Filter is now ready for service.

9. Record clean starting filter pressure gauge reading as a reference.

10. For new pools, backwash once a day until pool water is sparkling clear.Backwash when pressure gauge shows 5 to 7 psi (35 to 50kPa) higher thanclean starting pressure (refer step 9).

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SERVICE &MAINTENANCE

General:Wash outside of filter with a mild detergent and water. Rinse off with hose.

NOTE: DO NOT use solvents to clean filter; solvents may damage components insystem.

Inspect sand/media bed at least once a year to remove foreign material which hasnot been back-washed out of the system.

NOTE: When the sand/media bed gets hard and crusty on top, remove all the oldsand/media and replace it with new sand/media. Alternatively, if the pressure gaugedoes not return to within 40kPa of clean filter pressure after back-washing, it istime to replace the filter media.Weekly Pool Equipment Inspection1. Check pressure during operation. When pressure is 5 to 7 psi (35 to 50 kPa)

higher than clean operating pressure, backwash filter (see instructions under“Startup/Operation, Page 7).

2. Except during hot weather with heavy skimmer loads, operating filter 6 to 12hours per day should be sufficient. Carefully monitor water chemical balanceand follow recommendations of your local pool professional.

Water MaintenanceKeep water level at least 2” (50mm) above bottom of skimmer opening.Failure to do so can allow air to enter system, causing pump to lose prime and air toenter filter.

Maintain pH between 7.2 and 7.6 in pool.

To prevent damage to system components, keep watertemperature below 38ºC at all times.

Vacuum Pool (Refer cleaner operating manual or consult your local poolprofessional):1. Fill vacuum hose by submerging in water from one end to the other.

2. To vacuum, insert hose into skimmer suction manifold or into vacuum line inpool wall. See instructions provided by the pool builder or pool manufacturer.Start pump, making sure it is primed and pumping.

3. After vacuuming, clean pump trap basket to remove accumulated debris, thencheck filter pressure gauge. If reading is 5 to 7 psi ( 35 to 50kPa) higher thaninitial operating pressure, backwash filter.

Lower or Drain Pool1. Turn pump ‘OFF’; set valve handle to ‘WASTE’.

2. Use vacuum cleaner hose and head.

3. Start pump; run until pool is lowered to desired level.

4. Turn pump ‘OFF’ set valve handle to ‘FILTER’.

5. Start pump.

Multi-Port Valve Service

WARNINGIf valve is leaking during normal operation it will need tobe repaired by an authorised Onga service technician

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SERVICE &MAINTENANCE Continued

WARNINGHazardous pressure. Stop pump and release all pressurefrom system before working on filter, valve, or clamp.

NOTE: If Multi-Port Valve is below pool water level, close suction and dischargevalves before disassembly to prevent draining pool.1. Disconnect piping from pump and pool.2. Remove clamp.3. Remove valve from filter top.4. To reinstall valve, follow instructions (Diagrams on Page 8), BE SURE to

follow clamp tightening instructions.

Valve Removal

Model PSF21 & PSF25

Repair Parts – Tank Assembly Item Description Qty. 01 Filter tank assembly 1 02 Collector hub 1 03 Lateral assembly 8 04 Multiport Valve assembly 1 05 Vee clamp 1 06 Handle – vee clamp 1 07 O’ring – tank flange 1

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1½” Multi-Port Valvefor PSF21 & PSF25

Repair Parts 1½” Multiport Valve Item Description Qty. 01 Handle 1 02 Pin – Dowel 5/16”, Diameter 2” 1 03 Washer (Celcon) 1 04 O’ring #2-216 1 05 Spring – stainless steel 1 06 Washer – stainless steel 2 07 Plug & Gasket Assembly 1 08 Upper Body - Valve 1 09 Screw – Phillips ¼-20 x 1¼” 7 10 O’ring #2-258 1 11 Nut – Hex ¼”-20 7 12 Lower Body - Valve 1 13 Pressure Gauge 1

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PSF31

Repair Parts – Tank Assembly Item Description Qty. 01 Filter tank assembly 1 02 Collector hub 1 03 Lateral “Y” piece (large) 8 04 End cap - lateral 16 05 Locking pin - lateral 30 06 Vee clamp 1 07 Handle – vee clamp 1 08 O’ring – tank flange 1 09 Multiport valve assembly 1

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2” Multi-Port Valvefor PSF31

Repair Parts 2” Multiport Valve Item Description Qty. 01 Handle 1 02 Pin – Stainless steel 304 1 03 Washer 1 04 O’ring 2 05 Spring – Stainless steel 304 1 06 Washer 1 07 Divertor Head 1 08 Cover 1 09 Screw – Stainless steel 304 10 10 O’ring - Cover 1 11 Nut – Hex Stainless steel 304 10 12 Body – Top Mount 1 13 Pressure Gauge 1 14 Sight Glass 1 15 Gasket – Sight Glass 1 16 Gasket – Divertor Head 1

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TROUBLE SHOOTING CHART

PROBLEMS CHECK LIST

No WaterDischarge

Pool water level too low. (Check water level in weir skimmer).Air leaks in inlet fittings to pump. (Check and tighten allconnections. Teflon tape fittings)

Short Filter Cycles High pressure gauge indicates the filter is dirty.Filter not backwashed for long enough period.Algae present in pool water.DON'T RUN FILTER WITH LIVE ALGAE IN POOL.Check the chemical condition of pool water and refer to Pool WaterChemical Treatment.NOTE: Incorrect chemical treatment will greatly shorten filter cycle.

Filter StartupPressure Low andWater Flow Low

Skimmer Basket full of leaves or debris.Pump Strainer LId not sealed correctly.Pool Water level too low.Pump Impeller Blocked - #Blockage in Suction Line - #Air Leak in Suction Line - #

Filter StartupPressure High andWater Flow Low

Filter requires backwashReturn Line restricted - check valvesDE FiltersSeptum clogged through too little DESeptum clogged by suntan oil, chemical scaling

Leaking From FilterTank Joint

Tank "O" Ring dirty. - #"O" Ring incorrectly fitted. - #"O" Ring damaged (pinched). - #Clamp Band not correctly fitted - #

# Call Serviceman

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Onga Product Warranty

Onga warrants that, when this product is used for the purpose it was designed, is correctly housed and ventedagainst weather, vermin, dust etc., that it will be free of material and manufacturing defects at the time of theoriginal purchase.This warranty is limited to the cost of the product and does not cover third party costs including thecosts of electricians, plumbers, etc. unless authorised by Onga pumps.

TERMS AND CONDITIONS APPLICABLE INTERNATIONALLYHow long the warranty is effective Internationally

1) This Onga product is warranted for 12 months for all parts from the date of the first consumerpurchase. Should any parts fail as a result of such defects within the specified period, the part will bereplaced free of charge. (This does not include travel charges, removal and reinstallation charges.)

TERMS AND CONDITIONS APPLICABLE IN AUSTRALIA ANDNEW ZEALAND

1) YOU SHOULD CAREFULLY READ THE INSTRUCTIONS SUPPLIED PRIOR TO USING THIS ONGAPRODUCT.This product is to be installed and operated in accordance with the instructions provided. Thiswarranty will not apply if it is used in a manner otherwise than in accordance with theinstructions.

What the warranty covers:

Onga warrants its products to be free of defects in material and workmanship during the warrantyperiod. If a product proves to be defective in material or workmanship during the warranty period,then Onga will, at its sole option repair or replace the product with a like product. Replacement productor parts may include re-manufactured or refurbished parts or components.How long the warranty is effective:1) This Onga tank is warranted for 10 years (Multi-port valve and Laterals 2 years) from the dateof the first consumer purchase.2) Where this Onga product is sold for commercial application as defined in the relevant TradePractices and Consumer Protection legislation the warranty shall be for a period of six monthsfrom the date of purchase by the end user.3) Ancillary equipment including but not limited to plastics and metal fittings, electrical controls(including touch pads), bladders, pressure switches, filter cartridges, pressure gauges, etc. shall bewarranted for a period of twelve months only in relation to consumer applications and six monthsin relation to commercial applications.Who the warranty protects:This warranty is valid only for the consumer purchaser.What the warranty does not cover:1) Damage, deterioration or malfunction resulting from:

a) accident, misuse, negligence, fire, water, lightning, or other acts of nature, unauthor-ised product modification or failure to follow instructions supplied with the product;

b) repair or attempted repair by anyone not authorised by Onga;c) any damage to the product due to shipment;d) removal or installation of the product;e) causes external to the product such as electric power fluctuations or failure;f) use of supplies or parts not meeting Onga specifications;g) normal wear and tear;h) water ingression or exposure to abnormal corrosive conditions or “run dry” conditions;i) any other cause which does not relate to a product defect.

2) Damage caused to the product as a consequence of use of another manufacturer’s productused in conjunction with Onga and affiliate companies.

3) This warranty does not cover such products as combustion engines or other componentparts of units not manufactured by Onga, but where possible Onga will make available topurchaser the benefit of any warranty of that manufacturer.

4) This warranty does not cover underwater light bulbs, underwater lights will only bewarranted if wiring is to approved standards, and an approved transformer incorporatingthermistors has been used, running the light not submerged in water will void warranty.

5) Hydrostatic relief valve supplied separately or incorporated in products are sold with theexpress understanding that such products offer limited hydrostatic relief and no offer ismade or implied as to the suitability of such products for a specific application as theircondition at the time of sale are unknown and beyond Onga’s control. It is the responsibilityof the installer to ensure that the performance of the valve meets the required application.

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Onga Product Warranty (Continued)

6) Swimming pools or spa equipment will not be warranted where the Langelier SaturationIndex ‘pH’ range is outside 7.2 to 7.6 and they have not been regularly treated with chlorine orbromine based sanitising systems, or other recognised sanitising systems.

Spare Parts:Spare parts are usually stocked for a reasonable period of time following last production.

Onga does not warrant that spare parts will be made available for the whole of the reasonableperiod and reserves its right to cease supplying spare parts or providing facilities for repair ofspare parts in circumstances which are beyond its control including the requirement to removespare parts from sale as a consequence of changes in the law or otherwise as it deems fit.

How to get service: In Australia please contact 1800 664 266 In New Zealand please contact 0800 664269

Claims under this warranty must give evidence of date of purchase, model and serial number of the product and the claimants name, address and telephone number.

1) To obtain warranted service, you will be required to provide to either Onga state office orrecommended service agent:-a) the product;b) confirmation in writing specifying the nature of your claim;c) proof providing date of original purchase;d) full contact details including name and address;e) the serial number of the product if any.

2) The product is to be forwarded by the customer freight paid to an Authorised Onga serviceagent.Infield service by an authorised Onga Service Agent will incur a travel, removal & reinstalla-tion fee to adjudicate on warranty issues.Authorised warranty will be free of charge for the first 12 month period from date of the firstconsumer purchase.

3) Warranty service work will be denied or suspended on equipment not readily accessible toservice personnel, that is products that are behind barriers, tiled or bricked in, installed inroofs or second story external walls including inaccessible power points.

4) Any service of any product which is found to be faulty due to abuse, misuse or improperinstallation will be charged to the owner at the service agents current servicing hourly rate.

Limitation of implied warranties:THERE ARE NO WARRANTIES, EXPRESSED OR IMPLIED, WHICH EXTEND BEYOND THE DESCRIPTIONCONTAINED HEREIN INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE.

Exclusion of damages:ONGA’S LIABILITY IS LIMITED TO THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT. ONGA SHALLNOT BE LIABLE FOR:1) DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE PRODUCT, DAMAGES BASED

UPON INCONVENIENCE, LOSS OF USE OF THE PRODUCT, LOSS OF TIME, LOSS OF PROFITS, LOSSOF BUSINESS OPPORTUNITY, LOSS OF GOODWILL, INTERFERENCE OF BUSINESS RELATION-SHIPS, OR OTHER COMMERCIAL LOSS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCHDAMAGE.

2) ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.3) ANY CLAIM AGAINST THE CUSTOMER BY ANY OTHER PARTY.

Effective law:This warranty gives you specific legal rights, and you may also have other rights which vary fromstate to state. Nothing in this warranty limits or restricts, or is intended to derogate from, any rightor remedy which the purchaser or ultimate user of the product may have pursuant to Australianstate and/or Australian federal consumer protection legislation, New Zealand Sale of Goods Act,Consumer Guarantees Act, Fair Trading Act or any other relevant and applicable New Zealandlegislation or authority and where necessary shall so be read and construed.

IMPORTANTPlease attach your sales invoice/docket here as proof of purchase shouldwarranty service be required.

Please do not return Warranty - Retain for your records.

Purchased From

Purchase Date Serial No Model No

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Ask your local Onga retail outlet about the extensive family ofOnga products

Great White Automatic Pool CleanersHydrostatic Relief Valves

Salt ChlorinatorsPool Brooms

Skimmers& more

RakesTelepolesLeaf ScoopsVacuum HoseVacuum HeadsWater Testing Kits

ZelbriteFilter Sand

Solar PumpsValves, Fittings

Filtration PumpsGenuine Spare Parts

800547- 15/07/2003