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C-Skim1200Advanced Protein Skimmer

USER MANUAL


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ContentsIntroduction to protein skimming ...................3-5

What is protein skimming? ............................................3

Why is protein skimming important? ............................3

How does a protein skimmer work? .............................4

For what volume of aquarium is the C-Skim

suitable? ..........................................................................5

Unique Features of the C-Skim .........................6-7

Peripheral Flow closed loop skim chamber ..................6

Integrated Skimmer Neck washing System ..................7

FoamView ....................................................................7

Parts diagrams......................................................8-9

Safety Instructions ............................................10-11

Assembly ..............................................................12-14

Collection Cup .................................................................12

Aspiration Pump .............................................................13

Spray Ring .......................................................................13

Outlet Elbow ...................................................................14

Installation ...........................................................15-16

Positioning the skimmer ................................................15

Connecting the skimmer to feeding pump ...................16

Waste collection ..............................................................16

Operation & adjustment..................................17-20

Operating the C-skim Classic .............................................17

Operating the C-skim Deluxe........................................18

Skim Regulator ...............................................................19

Air Control Valve ...........................................................19

Ajusting the C-skim............................................................20Removing the collection cup.........................................20

Maintenance ......................................................21-25

Washing the Neck .........................................................21

Removing the collection cup ........................................22

Cleaning the Collection Cup...........................................22

Cleaning the Aspiration pump & Impeller ...................23

Disassembling and reassembling the internalparts.........................................................................24-25

Troubleshooting ...............................................26-27

Warranty........................................................................28


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WelcomeCongratulations on purchasing the Red Sea C-Skim 1200

protein skimmer.Red Sea C-Skim 1200 represents an integration ofrevolutionary features, performance characteristics ofhigh demand commercial foam fractionators, and thefoot print and affordability of a modernly designed hobbyprotein skimmer.

The C-Skim provides a new level of protein skimming interms of efficiency, performance and user friendliness.The C-Skim has been rated according to Red Seas revisedunderstanding of water quality requirements for differenttypes of marine aquaria.

The C-Skim features include a Peripheral Flow, ClosedLoop, Skim Chamber providing improved water/air flowdynamics, an optional integrated Neck Washing system,which increases long term skimming performances, andthe FoamView enabling easy adjustment of skimmingfoam production. The ergonomic rectangular design ofthe, C-Skim with the complete user interface on one sideof the unit, makes the C-Skim ideal for mounting eitherin or next to a sump.

To get the maximum benefit from this protein skimmer,follow the instructions and recommendations containedin this manual. If you experience any difficulties operatingyour skimmer or have questions of a more generalnature, please do not hesitate to contact us directly atredseafish.com, or call your local Red Sea representative.

Red Sea Group


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Introduction to proteinskimmingWhat is protein skimming?Protein skimming (also called foam fractionation) canbe considered as a form of fine mechanical filtrationsince it is a physical process of removing substances fromthe water. Whilst a mechanical filter removes largeparticles such as uneaten fish food, a protein skimmerremoves suspended or dissolved organic waste andinvisible particles from the aquarium water.

The advantage of protein skimming lies in the fact thatwaste material is continuously removed, separating itfrom the water flow. The waste, suspended in foam, isthen collected into a cup where it is no longer in contactwith the aquarium water. In contrast, the dirt collectedin an ordinary mechanical filter stays in contact with thewater flow. A mechanical filter should therefore becleaned very regularly; otherwise bacteria will decomposethe collected dirt into harmful dissolved organic material.

A successful marine aquarium should have both a regularlycleaned mechanical filter and an efficient protein skimmeras the first and second stage of the water treatmentprocess.

Why is protein skimming important?Protein skimming plays a very important role in reducingthe amount of dissolved organic material in your aquariumwater. This material consists of protein, carbohydrateand fat fragments together with other waste producedby the living organisms in the marine aquarium.

Since these could break down to potentially harmfulmaterials to the aquarium inhabitants, rapid removal isessential.

Efficient removal of dissolved waste also helps to:

Limit the build-up of harmful organiccompounds (measured in COD & TOC) includingdissolved organic carbon, nitrogenouscomponents (ammonia, nitrite, nitrate)and phosphates.

Reduce the quantity of harmful floatingbacteria (measured as BOD), since bacteria needdissolved organic material in order to growand reproduce.

Increases ORP and dissolved oxygen levels.

Prevent the development of slime algae(Cyanobacteria or blue green algae). The mainfood source of these primitive algae (dissolvedorganic material, nitrate and phosphate) is kept ata very low concentration.


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How does the C-Skim proteinskimmer work?

The C-Skim is based on a peripheral flow skim chamberwith a dedicated closed loop aspiration pump thatprovides a constant injection of 450 liters (120 gal) ofair per hour. The organics laden aquarium water is injectedinto an air pocket above the conical shaped top of theskimming chamber, and flows smoothly downwardsaround its periphery into the turbulent air/water mixturebelow. The aspiration pump with pin wheel impellor re-circulates the water in the chamber while constantlyinjecting micro air bubbles into the water. The conicaltop of the skimming chamber concentrates the air/water

mixture, forcing it up into the neck of the collection cupwhere it slowly transforms into dry concentrated organicsladen foam.

The water exits the skimmer chamber around the bottomouter edge where it is almost bubble free, and is returnedto the sump via a skim regulator that is used to adjustthe foaming for optimal skimming performance. Adjustingthe skimmer is made easy by viewing the level of foamin the neck through the FoamView window in thecollection cup.

The optional integrated neck washing system limits the

build up of performance-inhibiting organic sludge, aswell as keeping the FoamView clear at all times.


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C-Skim ConfigurationsThe C-Skim is available in both Classic and Deluxe

configurations. The optional integrated neck washingsystem is available as an upgrade kit that can be fittedretrospectively to the Classic version.

The Deluxe version includes all of the regular featuresof the Classic version plus the optional integrated neckwashing system fitted as standard.

For what volume of aquarium is theC-Skim suitable?

Saltwater aquaria can be classified into three main types:

Fish tanks, which contain only fish.

Soft coral (LPS) tanks, which contain a mixtureof soft corals, invertebrates and fish.

Hard coral (SPS) tanks, which contain mostlyhard corals and few fish.

Each aquarium type requires a different turnover rate,i.e. the number of times the total volume of the tankneeds to pass through the skimmer in order to maintainthe suitable water parameters for the aquariumsinhabitants.

The recommended aquarium volume ratings for theC-Skim have been calculated according to the optimumturnover rate per aquarium type, as determined bylaboratory tests conducted by Red Sea.

1200 liter

300 gallon

700 liter

175 gallon

400 liter

100 gallon

AquariumVolume

Fish tank Soft coral (LPS) Hard coral (SPS)


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Unique Features of the

C-SkimPeripheral flow closed loop skimchamberThe C-Skim incorporates a peripheral flow closed loopskim chamber. The aquarium water enters and exits theskimming chamber along its upper and lower peripheralouter edges, and is constantly aerated with micro bubblesby a closed loop aspiration pump.

The organics laden aquarium water enters the skimmerthrough the inlet hose barb.

The water is injected into an air pocket above the conicaltop of the skim chamber which spreads the incomingwater flow evenly around the periphery of the skimchamber walls This prevents turbulent flows that candestabilize foam production.

The aspiration pump, located on the side of the skimchamber, re-circulates the water within the chamber,while constantly injecting new micro bubbles into theair/water mixture.

The conical top of the chamber concentrates the air/watermixture, forcing it up into the neck of the collection cupwhere it slowly transforms into dry concentrated organicsladen foam. The closed loop aspiration pump with pinwheel impeller provides a constant injection of 450 liters(120 gal) of air per hour.

The out-flowing water is collected evenly from the lowerperiphery of the skim chamber, where the water is mostrelaxed and predominantly free from the micro-bubbles which naturally remain inside the chamber exitingthe skimmer back into the sump through the skimregulator.


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Optional Integrated Skimmer NeckWashing system

The neck of the protein skimmer is the section wherethe dense air/water mixture gradually transforms intodry foam.

Over time, if not cleaned regularly, a thick layer of organicsludge will form on the inside of the neck. Research hasshown that allowing organic sludge to accumulate inthe skimmer neck will reduce foam production by30-40%.

The integrated neck washing system developed for theC-Skim diverts the incoming water for a short period oftime from the skim chamber to an annular spray ringaround the top of theneck, which spraysconcentrated jets ofthe incoming wateronto the inside of theneck. This washes allof the accumulatedsludge back into thereaction chamber.Upon returning thewater flow back to the

skim chamber, most ofthe sludge isimmediately flushedout of the neck intothe collection cup.

FoamViewThe FoamView window built into the front of the

collection cup provides a clear view of the foam ingactioninside.the skimmer neck, and allows for easy and accurateadjustment for achieving the desired consistency ofthe foam.

The integrated neck washing system will keep the neckcompletely clear at all times (Deluxe version only).

Optimal compactnessThe ergonomic compact rectangular design of the C-Skimwith the complete user interface on one side of the unitmakes the C-Skim ideal for any conventional filtrationsystem, in-sump or stand alone, without compromisingon skimming efficiency or performance.


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Parts diagramsClassic Version

1. Collection cup lid

2. Foam Ring*

3. Collection Cup

4. Foam View

5. Collection Cup Seal

6. Water Injection Assembly*

7. Skim Chamber Top

8. Inlet hose barb

9. Inlet hose Lock-nut

10. 90 Outlet elbow

11. Aspirating Pump Assembly

12. Lower port o-ring

13. Aspirating Pump Lower port

14. C-Skim Body

15. Aspirating pump Upper Port

16. Air line hose barb

17. Outlet pipe

18. Skim regulator

19. Latch

20. Air Control Valve

21. Body plug*

22. Collection cup Handles

23. Waste Drain port

24. Drain plug

*Classic version only.

1

2

3

4

6

10

18

17

16

14

8

20

9

21

22

7

5

11

24

12 13

15

23

19


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25

27

26

Deluxe Version

25. Spray ring

26. Internal Valve Assembly

27. Control Lever

28. Control Lever Cover

29. Control Lever Screw

30. Control Lever sleeve

31. Control Panel O-rings

32. Spray ring O-ring

33. Wash connector O-ring

41. Pump body

42. Pump Outlet O-rings

43. Aspiration pump outlet

44. Impeller Magnet

45. Pin Wheel Impeller

46. Impeller chamber O-ring

47. Impeller chamber bayonet

48. Lower Port O-ring49. Pump Connector bayonet

50. Water drainage Plug

51. Aspiration Pump air inlet

52. Pump Connector Assembly

28 29 30 31

32 33

41

42

43

44

45

46

47

48

49 50

51

52


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Important SafetyInstructionsPLEASE READ AND FOLLOW ALL SAFETY INSTRUCTIONS

DANGER: To avoid possible electric shock, special careshould be taken when handling a wet aquarium. Foreach of the following situations, do not attempt repairsyourself; return the appliance to an authorized servicefacility for service or discard the appliance.

WARNING: To guard against injury, basic safety precautionsshould be observed, including the following:

a. Do not operate any appliance if it has a damaged cordor plug, if it is malfunctioning, or if it is dropped or

damaged in any manner.

b. To avoid the possibility of the appliance plug orreceptacle getting wet, position the C-Skim to one sideof a wall mounted receptacle to prevent water fromdripping onto the receptacle or plug. A drip loop, asshown in the diagram should be arranged for eachcord connecting an aquarium appliance to a receptacle.The drip loop is that part of the cord below the levelof the receptacle or the connector.Use an extensioncord if necessary to prevent water traveling along thecord and coming into contact with the receptacle.

If the plug or receptacle does get wet, DO NOT un-plugthe cord. Disconnect the fuse or circuit breaker thatsupplies power to the appliance. Then, unplug the deviceand examine for presence of water in the receptacle.

Drip-loop


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c. Close supervision is necessary when any appliance isused by or near children.

d. To avoid injury, do not contact moving parts.e. Always unplug an appliance from an outlet when not

in use, before putting on or taking off parts, andbefore cleaning. Never pull the cord itself to removethe plug from the outlet.

Grasp the plug firmly and pull to disconnect.

f. Do not use an appliance for anything other than itsintended use. The use of attachments notrecommended or sold by the appliance manufacturermay cause an unsafe condition.

g. Do not install or store the appliance where it will beexposed to the weather or to temperatures belowfreezing point.

h. Make sure an appliance mounted on a tank is securelyinstalled before operating it.

i. Read and observe all IMPORTANT notices on theappliance.

j. If an extension cord is necessary, a cord with a properrating should be used.

SAVE THESE INSTRUCTIONS

NOTE: A cord rated for less amperes or watts than theappliance rating may overheat. Care should be takento arrange the cord so that it cannot be tripped overor pulled accidentally.


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AssemblyUnpack the box carefully and remove all protective

packaging materials. Familiarize yourself with thecomponent parts.

Collection cup1. Position the C-Skim on a flat, stable surface, with the

control panel facing you.

2. Open the latches on both sides of the skimmer bodyby lifting them outwards and upwards, allowing thelatches to spread aside.

3. Hold the left handle of the collection cup firmly inplace, and gently lift the right handle until the cupseparates from the skimmer body. Lift the cup andremove.

4. Inside the skimmer body is the conical top of the Skimchamber and either the internal water injectionassembly (classic version) or the internal valve assembly(Deluxe version). All of these parts are removable;however, this should not be necessary for standardoperation of the C-Skim.

5. In order to reassemble the collection cup, ensure thatthe latches are spread aside and do not interfere in

placing the cup on top of the skimmer body.6. Ensure that the collection cup seal, (A) is in place.

7. Hold the collection cup by the handles with theFoamview facing the C-Skim control panel andposition on top of the skimmer body.

Deluxe version: align the wash connector with the

internal valve assembly and press the collection cupinto position. Wetting the wash connector O-ring (B)will make assembly easier.

8. Close the latches.

Foam ring(Classic version)Most of the dry organic sludge will concentrate on theupper level of the skimmer neck. The removable foamring, located at the top of the neck inside the collectioncup, will become covered with most of the dry sludgeand will therefore allow you to remove most of theaccumulated organic sludge by cleaning the foam ringinstead of having to disasemble the entire collection cup.


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Spray ring (Deluxe version)The removable spray ring of the integrated neck washing

system is located at the top of the neck inside thecollection cup. Over time, the spray ring will becomecovered with sludge, and therefore should be removedperiodically for cleaning.

1. To remove the spray ring, hold the ring by its outercircumferance and lift it upwards away from the neckof the collection cup.

2. Before reassembling, ensure the spray ring connectorO-ring is in place. Wetting the O-ring with water willmake assembly easier.

3. Align the spray ring water inlet with the connector.

Rotate the spray ring so that the positioning strip isaligned with the recess provided for it on the panelabove the FoamView window.

4. Push the spray ring firmly on to the neck such that itbecomes a smooth extension of the neck.

Inspect the inner part of the spary ring adjacent to theconnector and ensure that the ring is fully inserted.

Aspiration pump1. Familiarize yourself with the aspiration pump

components by disassembling and reassembling it.

2. The pump connector assembly should be assembledsuch that the pump inlet and outlets are properlyaligned with each other. Ensure that the impellerchamber bayonet is fully closed.

3. Wet the pump outlet O-rings with water and gently

push the pump outlet into the upper port on theskimmer body with small clockwise andcounterclockwise rotations until the pump body istouching the upper port.

13

O-ring


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4. Ensure that the lower port O-ring is in position andconnect the pump connector bayonet to the lowerport.

5. Connect one end of the air line to the pumps air inletand the other end to the air line hose barb on theskimmer body.

when installing the C-Skim as a stand alone unit next toa sump. Always ensure that the final water outlet isabove the maximum water level in the sump.

1. Ensure that the outlet elbow O-ring is in place on theconnector. Insert the connector into the outlet pipeand turn the bayonet clockwise.

2. If installing the elbow to direct water flow verticallydownwards, remove the plug from the air vent. Thisprevents water from being sucked out of the skimmer,which can cause the skimmer to stop foaming.

3. If installing the elbow to direct water flow sideways,ensure that the air vent is securely plugged.

4. Do not postion the elbow above the horizontal position,as this will adversly affect C-Skim performance.

5. If adding any additional 90 elbows to the outlet pipe-work in order to direct the flow vertically downwards,an air vent must be added to prevent siphoning.

6. Using flexible tubing is not recommended as kinks inthe tubing will also cause siphoning.6. Ensure that the water drainage plug is securly in

position on the drainage port of the pump connectorassembly.

Outlet elbow

The C-Skim is supplied with a 90 outlet elbow to re-direct the water leaving the skimmer.

The outlet elbow is designed to allow a rigid extensionpipe to be glued to it. The outlet will accept both 40mmmetric and 1.5 external diameter standard pipes. It isnecessary to add an extension pipe

Air Vent pluggedPlug Removed


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InstallationPositioning the skimmerThe C-Skim 1200 is an independent unit that can beinstalled inside or next to the sump.

The C-Skim outlet is designed to allow standard 40mmor 1.5 rigid pipe to be added as necessary.

Ideally, the skimmer should be fed with water directlyfrom the aquarium prior to passing through the bio-filter.This allows the skimmer to physically remove as muchwaste as possible, reducing the nitrate production in thebio-filter as well as providing it with super oxygenatedwater which improves its performance.

For best results, the out-flowing water should be returneddownstream of the water fed into the skimmer.

The out-flowing water must not be subjected to anyback-pressure. The outlet elbow (if installed) must neverpass the horizontal position, and the ultimate wateroutlet must always be above the maximum water levelin the sump.

Failure to comply with these requirements will causeyour skimmer to flood.

1. Always ensure there is at least 5cm (2) of headroom

above the skimmer so the collection cup can beremoved from the skimmer body.

2. Ensure there is easy access to the control panel anda clear line of sight to the FoamView window.

3. If installing the C-Skim in a stand alone (next to sump)configuration, it may be necessary to raise the skimmerby placing it on a small platform. Ensure this platform

supports the entire base of the C-Skim.

Feeding pump External pumpBio - Media

Max waterlevel

Max waterlevel

Valve

Bio - Media External pump


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Connecting the feeding pumpThe C-Skim 1200 will run most efficiently when the

water throughput is 1200-1500 l/h (300-400 gph).This throughput can be achieved by connecting theskimmer in-line to the main aquarium pump or to anindependent submersible pump.

Deluxe version: Do not use a gravity feed as this willnot provide enough pressure to operate the washingsystem.

When connecting to the main aquarium pump, or if usinga very powerful independent pump, it will be necessaryto install a f low valve to reduce the inlet flow to thesuitable level for the C-Skim.

The inlet hose barb is designed for a standard flexiblehose which should be secured in place with the lock-nut. After assembling the inlet hose check that it issecurely in position by pulling it gently as this connectionwill be under pressure during the normal operation ofthe unit.

Waste CollectionTo simplify collection of waste, the C-Skim collection cup

incorporates a drain port. The base of the collection cuphas a downward spiral directing all collected waste tothe drain port.

To use the drain port, remove the drain plug and attachthe hose provided. Direct the hose into a suitable containerensuring the hose does not rise above the level of thedrain port.


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Operation & adjustmentProper operation and adjustment of the C-Skim is required

in order for it to continuously maintain water cleanliness.Operating the C-Skim ClassicWith the skimmer located in the desired position, ensurethe inlet hose is connected tightly without restrictionsor kinks.

1. Check that the aspiration pump and the air line areconnected properly to the C-Skim body.

2. Ensure the C-Skim latches are tightly closed.

3. Rotate the skim regulator to the Low position.

5. Wait until the skimmer body is full of water and waterflows out the outlet pipe.

6. If the water level is visible in the FoamView, theinlet flow is too strong and should be reduced (seeconnecting the feeding pump above).

7. Fully open the air control valve by turning itcounterclockwise.

8. Turn on the aspiration pump.

9. The water/air mixture will immediately begin to fillthe C-Skim skimming chamber. After a few moments

you will see the water/air mixture beginning to riseup the FoamView window in the collection cup.

10. Adjust the foaming action with the skim regulatorand air control valve as described in the followingsection.

11. Adjustment of C-Skim operation is performed usingthe Skim Regulator and the Air Control Valve.

4. If the C-Skim is fed through the main aquarium pump,open the flow valve to allow water from the mainpump to flow into the skimmer. If the skimmer is fedby an independent submersible pump, turn it on.

LOW

OPEN


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Operating the C-Skim DeluxeThe C-Skim deluxe model has 3 operating states, selectedusing the Control Lever:

1. Washing Water flow is diverted to the integrated

washing system.

2. Skimming Normal skimming operation.

3. Cup removal Water flow is reduced to a minimalflow to allow removal of collection cup without turningoff the feeding pump or aspiration pump.

With the skimmer located in the desired position, ensurethe inlet hose is connected tightly without restrictionsor kinks and the control lever is set on skimmingposition.

Repeat stages 1-11 as described above on operatingthe C-Skim classic section above.

Washing

Skimming

Cup Removal


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Skim Regulator1. The skim regulator adjusts the water height within

the skim chamber as seen in the FoamView window,allowing the foaming point to be brought to theoptimum position for any given water conditions.

2. Setting the skim regulator handle in line with thewater outlet (Low) lowers the foam to the bottom ofthe FoamView. Rotating the handle 90to the wateroutlet (High) raises the level of the foam.

Air Control ValveThe air control valve is used in conjunction with the skimregulator for fine adjustment of the foam. Rotating thevalve in the counterclockwise direction will increasefoam level, by providing maximum air flow. Rotatingthe valve in the clockwise direction will decrease foamlevel, by shutting off air flow to the aspiration pump.

LOW

HIGH

OPEN

CLOSED


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Adjusting the C-Skim1. When your skimmer is adjusted correctly, you should

see a stable water/air mixture in the lower half ofthe FoamView window and wet, bubbly foambeginning to build up in the upper half of the window.

2. Correct adjustment is achieved by using the skimregulator and the air control valve.

3. Initially, set the skim regulator to Low and fully openthe air valve.

4. If the skimmer over-skims and produces a lot of wetfoam, gradually close the air control valve untiloptimum foaming is achieved. Recheck the skimmerevery few hours and readjust the air control valve as

required to maintain optimum foaming.

5. With the air control valve readjusted to the fully openposition, slowly turn the skim regulator clockwise untilthe foaming in the FoamView window reaches theoptimum level. Always make small incrementaladjustments to the position of the skim regulator andwait a few moments for the skimmer to stabilize.

6. Do not leave the skimmer running unattended withthe skim regulator in the High position as the waterlevel in the skim chamber may rise and flood into thecollection cup.

7. After setting the height of the air/water column asaccurately as possible using the skim regulator, finetune foam production using the air control valve.

Close the valve to decrease the airflow and lower theheight of the air/water column; open the valve toincrease the airflow rate and raise the air/water column.

8. Make small adjustments and wait a few momentsafter each adjustment for the skimmer to stabilize.


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Ensure that the cup or collection bottle (if you haveattached a waste pipe) has enough room to accommodatethe extra waste.

To wash the neck:

1. Check the amount of liquid in the collection cup/bottle.

2. Ensure the collection cup lid is securely in place.

3. Turn the control lever 90 counterclockwise to thewashing position.

4. Water will immediately flow from the spray ring ontothe inner wall of the neck, washing the organic sludgedown into the skim chamber. Foam production willimmediately collapse.

5. Allow the washing system to operate until the neck(FoamView) is clear of sludge. Turn the control lever90 clockwise back to the skimming position.

6. Within a few seconds, foam will rush up the neck withall of the organic sludge that has been removed.Thedirty wet foam will overflow into the collection cup.

MaintenanceCleaning the Foam/Spray Ring recommended weekly.

1. It is unnecessary to turn off water flow before removingthe extension/spray ring for cleaning.

Deluxe model: Ensure that the control lever is in theskimming or cup removal position before removing thespray ring. Do not attempt to remove the spray ring withthe control lever in the washing position.

2. Remove the collection cup lid.

3. Remove the extension/spray ring as described in theAssembly section above.

4. Wash the accumulated sludge off the extension/spray

ring by holding it under running tap water.Deluxe model: Clean the spray jet holes on the inside ofthe ring using a pin.

5. If using a scale remover or other cleaning solution,ensure that all residues of these materials are flushedout of the spray ring before reassembling it on theskimmer.

Washing the Neck (Deluxe version)For best result the neck washing system should be operated

as described below every day. If the washing system isnot used for a few days it may be necessary to manuallyclean the neck. Immediately after using the washingsystem, there will be a surge of waste into thecollection cup.

Tip: Daily operation of the washing system willrequire less time and water to clean the neck.


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Removing the collection cupUnless connecting a waste hose the collection cup willneed to be emptied as waste builds up.

1. Turn off the both feeding and aspirating pumps.

2. Remove the cup and dispose of the waste (seeDisassembling and reassembling the collection cupin the Assembly section above).

Deluxe version: It is not necessary to turn off the feedingpump and the aspiration pump before removing thecollection cup.

1. Turn the control lever 90 clockwise to the cup removalposition. This significantly reduces the flow of water

through the skimmer to prevent any overflow orsplashing of water outside the skimmer body whileremoving the cup.

2. Remove the cup and dispose of the waste (seeDisassembling and reassembling the collection cupin the Assembly section above).

Cleaning the Collection Cup recommended monthly.

1. Remove the collection cup from the skimmer body asdescribed in the Assembly section above.

2. Remove the Foam/Spray ring and clean as describedabove.

3. Rinse the collection cup under flowing water and wipeall surfaces with a soft cloth to remove anyaccumulated sludge.

4. If using a scale remover or other cleaning solution,ensure that all residues of these materials arecompletely rinsed off the collection cup before

reassembling it on the skimmer body.


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Cleaning the Aspiration pump &Impeller recommended monthly

1. Turn off or disconnect the C-Skim from its feedingpump.

2. Disconnect the aspiration pump power cord from thepower outlet and place in a dry location.

3. Remove the water drain plug of the pump connectorassembly to allow all of the water in the body of theskimmer to drain to the level of the lower port.If theC-Skim is installed outside of the sump, place a suitablecontainer under drainage port to collect the water.

4. Disconnect the air pipe from the hose barb on theskimmer body.

5. Open the inlet pump connector bayonet by rotating itcounterclockwise

6. Remove the pump by pulling it away from the skimmerbody with small alternating clockwise andcounterclockwise rotations.

7. Open the impeller chamber bayonet and pull out theimpeller.

8. Rinse all parts under the tap.

9. If you see any build up of scale on the inside of the

pump housing or on the impeller magnet, use hot wateror vinegar/scale remover to dissolve it. Make sure thatyou rinse off all residues of any cleaning materialsbefore reassembling the pump.

10. Reassemble the pump and reconnect to the skimmerbody as described in the assembly section above.


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Disassembling andreassembling the internal

partsShould it become necessary to remove either the Internalwater injection/ Valve assembly or the skim chambertop, follow the following procedure.

Classic Version1. Disconnect the skimmer from your system, remove

the collection cup and drain out all of the water.

2. Using an adjustable wrench remove the inlet hosebarb.

Note: it is not necessary to remove the body plug.

3. Lift both the water injection assembly and the skimchamber top out of the skimmer body.

4. Reassembling the parts should be done in the reverseorder.

5. Insert skim chamber top first and position it properlyon the outlet pipe and corner pegs.

6. Place the water injection assembly on the skim chambertop such that the threaded hole is opposite the port

on the skimmer body.7. Press the water injection assembly to the inside wall

of the skimmer body and tighten the inlet hose barb,making sure that its o-ring is in place

8. Check the integrity of the assembly by filling the skimmerbody up with water and check the connections for leaksand repeat the above if necessary.

9. Reassemble the collection cup and reinstall the skimmerin your system.

Deluxe Version:1. Disconnect the skimmer from your system, remove the

collection cup and drain out all of the water.

2. Set the control lever to the Skim position.

3. Using a small flathead screwdriver remove the controllever cover. Insert a small Phillips head screwdriver intothe shaft of the control lever body and unscrew the screwthat attaches the lever to the internal valve and thereafterpull the control lever body out of its sleeve.


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4. Using an adjustable wrench remove both the controllever sleeve and the inlet hose barb. Make sure thatyou collect the O-rings for reassembly.

6. Reassembling the parts should be done in thereverse order.

7. Insert skim chamber top first and position it properly

on the outlet pipe and corner pegs.

8. Place the internal valve assembly on the skim chambertop such that the 2 threaded holes are opposite theports on the skimmer body.

9. Ensure that the control panel o-ring is in position onthe left port and screw the control lever sleeve intothe internal valve assembly, but do not tighten.

10. Ensure that the control panel o-ring is in position onthe right port and screw the inlet hose barb into theinternal valve assembly, but do not tighten.

11. Press the internal valve assembly to the inside wallof the skimmer body and tighten the control leversleeve and the inlet hose barb

12. Insert the control lever into the control lever sleevein the Skim position, insert and tighten the Phillipshead screw.

13. Replace the control lever cover by pressing it intoplace.

14. Check the integrity of the assembly by filling theskimmer body up with water and check the

connections for leaks and repeat the above if necessary.

15. Reassemble the collection cup and reinstall theskimmer in your system.

5. Lift both the internal valve assembly and the skim

chamber top out of the skimmer body.


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TroubleshootingQ The bubbles in the skimmer are too large.

A Ensure that you are using the skimmer in saltwaterat the correct specific gravity. Freshwater cannot beefficiently skimmed using a protein skimmer.

Q My skimmer is new (or just cleaned) and doesntseem to be skimming.

A If your skimmer is new, clean it with fresh water andrinse thoroughly with hot water. Allow the skimmerto run for 48 hours to remove any harmless residuesfrom the production process. These materials are safefor your aquarium, but impede the skimmers ability

to foam efficiently for a couple of days. For moreinformation, refer to Section 7 Break-in period andfoam production.

Q My aquarium is full of micro bubbles or air mist.

A Inspect the water outflow from the skimmer. If it isfull of bubbles, reduce the air flow into the aspirationpump, using the air control valve. Monitor the situationfor several days, and slowly increase the air flow untilit runs in the fully open position.

TIP: You might be getting micro bubbles if you areusing tap water with water conditioners or naturalseawater. Many conditioners/impurities found innatural seawater increase the surface tension of thewater and cause a small proportion of the bubbles toescape the skimmer chamber.

Q My skimmer is producing a lot of weak, watery foam.

A Lower the water/air mixture in the FoamView usingthe skim regulator to allow the foam to become moreconcentrated. If this does not produce the desiredresult, lower the water/air column by reducing theair intake slightly using the air control valve.

TIP: Production of an excessive amount of weak,watery foam is also referred to as over-skimming.This often indicates the presence of chemicalsubstances that need to be removed by the skimmer.Many water conditioners/impurities found in naturalseawater increase the surface tension of the waterand cause serious over-skimming.

TIP: If you are using natural seawater, you should beaware that most seawater today contains traces ofpollutants, e.g. phenols, carbohydrates, oils, etc.Therefore, natural seawater is not recommended foruse in reef aquaria. We strongly recommend NOTusing tap water. If you intend to use it, however, DONOT add conditioners/dechlorinators. Instead, allowthe water to settle for 24 hours before introducingit to the aquarium, to allow the chlorine to evaporatenaturally.

TIP: If you are not using Red Sea Salt or Red Sea CoralPro salt formulae, be aware that some brands ofsynthetic salt contain binding substances, such asEDTA, that increases surface tension and causesover-skimming.


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Q I cannot lower the water/air mixture in theFoamView.

A 1. Ensure there are no restrictions on the water outlet,and that the outlet elbow is not above the horizontalposition.

2. Reduce the flow from the feeding pump.

Q Water is leaking out of my skimmer.

A If the leak originates between the collection cup andthe C-Skim body, ensure the latches are closed andthat the collection cup O-ring positioned properly inplace. Wipe the bottom of the collection cup seal andthe top of the skimmer body to remove any particles

that might be breaking the seal.If the leak originatesfrom any of the connections, ensure that the O-ringsare properly in place and that no particles are breakingthe seal.

Q There is a reduction in the quantity of air bubbles inmy skimmer.

A Open the air valve completely. If you still observe areduction in the quantity of air bubbles, check forblockages in the air pipe. If the problem persists,perform the following procedure:

1.Disconnect the pump and ensure that the air hosebarb is free of obstructions.

2. If necessary, submerge the inlet pipe assembly ina mixture of a cup of vinegar and a cup of hotwater and clean the air inlet with a toothpick or

other small sharp object. Rinse it well under tapwater and reconnect to the skimmer.


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Warranty

Red Sea Fish Pharm Aquarium Products Limited Warranty

The limited warranty sets forth all Red Sea Fish Pharm Ltd (Red Sea)responsibilities regarding this product. There are no other express orimplied warranties from Red Sea.Red Sea warrants your productagainst defects in materials and workmanship for a period of 12months, valid from the date of original purchase and will repair thisproduct free of charge (not including shipping costs) with new/rebuiltparts. Damage to the aquarium glass or to the florescent tubes is notincluded. The precondition for the warranty is that the stipulated set-up routine is observed. In the event that a problem develops withthis product during or after the warranty period, contact your localdealer or Red Sea (at the company address indicated) for details ofyour nearest authorized service center.

The warranty is extended only to the original purchaser. Proof of date

of purchase will be required before warranty performance is rendered.This warranty only covers failures due to defects in materials orworkmanship which occur during normal use. It does not cover damagewhich occurs in shipment or failures which result from misuse, abuse,neglect, improper installation, operation, mishandling, misapplication,alteration, modification or service by anyone other than an authorizedRed Sea service center. Red Sea shall not be liable for incidental orconsequential damages resulting from the use of this product, orarising out of any breach of this warranty. All express and impliedwarranties, including the warranties of salability and fitness forparticular

purpose, are limited to the applicable warranty period set forth above.

These statements do not affect the statutory rights of the consumer.USA

Some states do not allow the exclusion or limitation of incidental orconsequential damages, or limitations on how long an impliedwarranty lasts, so the above exclusion or limitations may not apply.


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www.redseafish.com

Red Sea DeutschlandHauptstrasse 3740699 ErkrathTel: (49) 2104 175 [email protected]

Red Sea EuropeZA de la St-DenisF-27130 Verneuil s/Avre,France

Tel: (33) 2 32 37 71 [email protected]

Red Sea U.S.A.18125 Ammi TrailHouston, TX 77060Tel: [email protected]

InternationalFree Trade Industrial ZoneEilat 88000, IsraelTel: +972 9 956 7107

[email protected]

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Documents

Copia de C-Skim Manual_gb