The Hozelock Cyprio SaturnBooster is an innovative self-cleaning mechanical prefilter.Designed to operate before any

pump-fed biological filter for fishpondsranging from 7,000 to 16,000 litres, theSaturn Booster will remove up to 75% ofpond debris. This reduces filter maintenanceand improves the biological performance ofyour existing filter.

DESCRIPTIONDirty water from the pond is pumped intothe Saturn Booster and spun around acircular polyester mesh filter. Most particlesare trapped by the mesh and then removedby a rotating jet. Dislodged particles fall intoa large waste collection area at the bottom,while the cleaned water passes through toyour existing filter system.

As it is a sealed unit, waste removal fromthe Saturn Booster is simply a matter oflifting the flush-away handle for a fewseconds every week.

The Saturn Booster is designed for simpleretrofitting into an existing installation. Thehosetails supplied allow connection to25mm, 32mm or 40mm hose.

To ensure reliable operation, there are twovalves built into the inlet assembly. Theseare colour coded – blue and red.

The red valve is a filter bypass valve andprevents damage to the Saturn Booster iffor whatever reason pressure rises abovesafe levels. The valve protects the SaturnBooster by redirecting the flow back topond via the lower hose connection on theinlet assembly.

The blue valve is a self-regulating pressuresensitive relief valve, which ensuresoptimum operation by controlling thepressure differential across the filter meshinside the Saturn Booster. Depending on theflow rate and level of debris, the valve canmove down during normal operation,indicating that it is regulating the pressure.

SAFETY AND ELECTRICALCONNECTIONS(in accordance with wiring regulations)

Installing this product in the garden isclassed as 'notifiable' in the revisedBuilding Regulations for England andWales. The Regulations now requireyou to tell your local authoritybuilding control department that youintend to install this product beforeinstallation. Your local authority willlet you know how you can get yourinstallation approved.

Safety InformationThe appliance is not intended for useby persons (including children) withreduced physical, sensory or mentalcapabilities, or lack of experience andknowledge, unless they have beengiven supervision or instructionconcerning use of the appliance by aperson responsible for their safety.Children should be supervised toensure that they do not play with theappliance.

(Australia & NZ only) This appliance isnot intended for use by youngchildren or infirm persons unless theyhave been adequately supervised by aresponsible person to ensure that theycan use the appliance safely.Young children should be supervisedto ensure that they do not play withthe appliance.

• Always disconnect the electricity supplybefore starting to handle, maintain,repair or install any pond equipment.

• This product is not submersible, andshould be sited where it cannot fall intothe water or become waterlogged.However, the design is weatherproof,and the Saturn Booster can be safelyinstalled outdoors.

• This product is supplied with 10m of 3core electric cable for connection to themains supply. The termination to themains supply should be permanent,inside a dry, weatherproof enclosure,through a double pole switched fusedspur with a minimum contact gap of3mm – ‘(disconnector) to BS 3676’ – andfitted with a 3 amp fuse.

• THIS APPLIANCE MUST BE EARTHEDAND IT IS ESSENTIAL THAT THECONNECTIONS ARE MADE USING THEFOLLOWING CODE;

Brown - Live

Blue - Neutral

Green/Yellow -Earth

The BROWN lead should be connectedto the LIVE terminal which may bemarked with an 'L' or coloured brownor red. The BLUE lead should beconnected to the NEUTRAL terminalwhich may be marked with an 'N' orcoloured blue or black. TheGREEN/YELLOW lead should beconnected to the EARTH terminalwhich may be marked with an 'E' orcoloured green or green/yellow.

• Exposed cable runs should be sensiblypositioned and protected if necessary byarmoured conduit.

• A 10mA or 30mA Residual Current CircuitBreaker (RCD) MUST be fitted to themains supply.

• Permanent installations to the mainssupply (hard wiring) must comply withthe regulations of your local authority.Contact your local authority buildingcontrol department for advice before youstart installation and they will let youknow how to get your installationapproved.

• If in any doubt about wiring to themains supply, consult a qualifiedelectrician or your local authority.

• The pump is fitted with 10m of 3 coreelectric cable which is permanentlyconnected and sealed to the motor.

The supply pump cable cannot bereplaced. If the cable is damaged, thepump should be removed and discardedand replaced with a new pump.

• Protect from frost if the unit is not runyear round, by draining and removing toa store in a dry, frost protected place.

• When full of water, the Saturn Boosterweighs nearly 100kg. DO NOT attempt tomove when full of water. To drain, pullup the flush handle to empty some ofthe water, and then gently tilt theBooster until most of the water isemptied.

IMPORTANT NOTE: The Booster is a sealedproduct and can be installed below pondlevel. If you plan to bury it you will have toremove the lid and siphon or ladle thewater out to empty it (for winter storage).Never completely bury the Booster. Ensurethe lid and valve housing are above groundas shown in Fig. 4.

1. INSTALLATIONImportant:The Saturn Booster can be fitted in a widevariety of installations. However thefollowing conditions must be met:

• Water flow through the Saturn Boostermust be between 3500 litres per hourand 8000 litres per hour.

• The Saturn Booster has to be connectedto an in-pond pump i.e. it is not suitablefor gravity-fed installations.

• Ensure the in-pond pump is raised200mm (9”) above the bottom of thepond. This will prevent any sediment onthe pond floor overwhelming your filter,and in the event of a leak outside thepond, prevent your pond from beingcompletely emptied. If the pond has a lot

Saturn BoosterPLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE USE AND

KEEP THEM FOR FUTURE REFERENCE

GB

1560

of debris on the bottom, it is always bestto remove it with a pond vacuum beforeinstalling a new filter.

• The Saturn Booster must be installeddirectly after the in-pond pump andbefore both the Filter and Ultra VioletClarifier (UVC).

• The pump supplying the Saturn Boostermust not have a maximum headexceeding 6m (9 psi, 0.6 bar).

• The outlet and flush away hoses must notrise more than 1m above theirconnection to the outlet assembly.

To complete the installation you will needtwo additional hoses:

1. One of 25mm, 32mm or 40mm diameterto take the waste from the SaturnBooster to a convenient flower bed ordrain (the ‘Flush Away Hose’)

2. A hose with the same diameter as yourexisting pond pump hose to connectfrom the filter bypass valve on theSaturn Booster back to your pond (the‘Bypass’ hose).

AssemblyUnpack all contents from the box (Fig 1).

The Booster only requires the fitting of theinlet assembly (see Fig 2)

• Gently push the inlet assembly into thelid carefully aligning the two valves (Fig2B)

• Tighten the two bolts using the Allen Keysupplied (Fig 2C)

InstallationThe Saturn Booster should be sited out ofthe pond in a position that is easilyaccessible and where the waste hose can berun to a convenient flowerbed or drain. TheSaturn Booster should be connected directlyto your in pond pump hose (i.e. before yourFilter [and UVC if fitted]) (Fig 3). The outletand waste hoses must not be raised morethan one metre above the Saturn Booster(Fig 4); otherwise the filter bypass valve willaffect the performance of the SaturnBooster.

The Saturn Booster should sit on a smoothand level surface eg. a paving slab.

Inlet and Outlet Hoses:• Cut your existing hose with a hacksaw at

the position where the Booster will beinstalled, noting that the hose lengthbetween the Booster and your filtershould be no more than 2m (Fig 5).

• If using 32mm or 40mm hose, cut two ofthe hosetails supplied with a hacksaw tosuit (Fig 6) and attach to the topconnection on both the inlet assemblyand outlet assembly.

• Wrap the adhesive foam strips aroundthe hose and position the jubilee clipsover the foam strips to connect the hosefrom the pond pump to the inletassembly hosetail (Fig 7A), and the hoseto your filter to the outlet assemblyhosetail (Fig 7B).

Flush-Away Hose:The flush-away hose can have a diameter of25mm, 32mm or 40mm and connects to thebottom connection on the outlet assemblyusing the hosetail and jubilee clip supplied(Fig 8A). Remember that the end of thishose must not be more than one metrehigher than the Saturn Booster.

Filter Bypass Hose:The filter bypass hose must be the samediameter as your pond pump hose andconnects to the bottom connection on theinlet assembly using the hosetail and jubileeclip supplied (Fig 8B).

Turning the Saturn Booster on for the firsttimeOnce you have connected the power cableto your mains electrical supply in accordancewith the Safety and Electrical Instructionsabove you are ready to start.

• Make sure the flush-away handle ispushed fully down to ensure there isn’t aleak path out of the flush-away hose.

• Turn on the pond pump. Within a coupleof minutes water will start filteringthrough the Saturn Booster and into yourfilter system.

! If there isn’t any water flowing throughto your filter system after a couple ofminutes, double check that the pondpump is working, and that the SaturnBooster’s inlet hose is correctly connectedto the top connection on the inletassembly.

• Turn on the Saturn Booster power supply.The Saturn Booster will now backwashthe internal mesh filter removing solidwaste that will settle in the bottom ofthe vessel.

• Check that there isn’t any water flowingfrom the flush-away hose and filterbypass hose.

! If water is flowing out of the flush-awayhose check that the flush-away handle ispushed right down. If water continues toflow from the hose, raise and lower theflush-away handle a couple of times incase some debris is trapped in the valve.

! If water flows out of the filter bypasshose this is because the pressure in theSaturn Booster is too high. There arethree possible causes:

1) Your pond pump is delivering toomuch flow/pressure. Provided you stillhave reasonable flow to your filtersystem, this is not a problem, howeverfitting a valve in the pond pump hose torestrict the flow to the Booster will stopthe overpressure valve from operating allthe time (Fig 9).

2) The flow of water from the SaturnBooster outlet to the pond is beingrestricted. Check all hoses between theSaturn Booster and your filter system areclear of obstruction. Check that yourfilter system is not restricting the flow.

3) The difference in height between theSaturn Booster and Biofilter is too great.If your filter system is, for example, at thetop of a waterfall, ideally position theSaturn Booster at the same height.

• Confirm that the flush-away valve isworking by lifting the flush-away handleand checking that water flows from theflush-away hose. If the flow of waterfrom the hose is a lot less than thatflowing into your filter system, check theflush-away hose for obstructions and alsodouble check that it is not raised morethan one metre above the SaturnBooster.

2. OPERATION ANDMAINTENANCEOperation:

Flushing out waste

At least once every week the waste shouldbe flushed out. This is done by lifting theflush-away handle (Fig 10). When the flush-away handle is fully-raised, the water flow isredirected to the flush-away hose.

Usually, all of the waste will be flushed outwithin fifteen seconds. This can beconfirmed by looking at the visible portionof the translucent hosetail and waiting for

the water flowing through the hosetail toclear.

When complete, lower (Fig 11) to redirectthe flow to your filter system. If watercontinues to flow from the waste hose, raiseand lower the flush away handle a couple oftimes to dislodge any debris that may havebecome trapped in the valve.

Pressure Sensitive Relief Valve (Blue)

Depending on the flow rate and debris, theblue valve can move down during normaloperation. This indicates that it is regulatingthe pressure. If your installation has a highlevel of debris being pumped from yourpond, the blue valve will stay partially open.In this situation, it is recommended that theBooster waste is flushed away daily. Duringflushing the valve will rise fully, but will fallpartially soon after completion. In theseconditions although the Saturn Booster willcontinue to remove high levels of debris,reducing the flow rate can increaseperformance further. With the improvedfiltration provided by the Saturn Booster,reducing the flow rate can often lead toimproved water clarity and quality as aresult of lower flow velocity through themechanical filter, increased dwell time forbiological action, and increased exposure tothe UVC (where fitted). Fitting a valve in thepond pump hose (fig 9) is a simple way toadjust the flow.

Another cause for high debris levels is if thein-pond pump is placed on the bottom of adirty pond (see point 3 in ‘Installation’).

If the Booster has not been desludged forsome while, and the blue valve has moveddown, raise and lower the flush-awayhandle 5 times, leaving it raised for just acouple of seconds each time before flushingout all the waste for 15 seconds. This willensure that any debris that has built up willbe dislodged and flushed out.

Blanket weed treatmentIf you have treated your blanket weed witha proprietory blanket weed treatment, thiscauses the blanket weed to fragment whichcan then enter the Booster and block themesh filter. To avoid this, remove theBooster from your filter system andreconnect your pond pump hose directly toyour filter. The Booster can be re-connectedonce the suspended blanket weed has beenremoved from your pond. This can takebetween 4-6 weeks.

Winter StorageIf the unit is not run all year round, protectif from frost in the winter by draining andstoring the unit in a dry place.

To drain, pull up the flush handle to emptysome of the water, and then gently tilt theSaturn Booster until most of the water isemptied.

MaintenanceThe Booster is designed for continuousoperation and should not require anymaintenance.

In the unlikely event that you experience aproblem, please use the ‘check-list’ below toidentify the cause.

ATTENTIONAUTOMATIC CUT-OUT. To help ensureyour Booster’s motor long life and toprevent damage, it is fitted withautomatic thermal overload protection.This switches off the motor if itoverheats. If this occurs, switch off thepower at the mains supply to the motor.Check for the cause. Usually it will bedue to no water flow through theBooster. Check that the pond pump is

running correctly and water is flowingthrough your filter system. Wait 15minutes for the motor to cool down andautomatically reset. Then switch on themains supply to the motor. If theproblem persists, there is a problemwith the motor and should beinvestigated following the samesequence as if the blue filter valve isstaying down.

The valves on the inlet assembly can be usedto help determine the problem. The filterbypass valve is red, and in normal operationthe valve is fully down, and can not be seenthrough the clear cap. The pressure sensitiverelief valve is blue, and in normal operationshould still be high enough to be seenthrough the translucent blue cap (Fig 24).

Note: The two caps are different in designand must be replaced with the identical parti.e. blue cap to blue valve and clear cap tored valve. The caps use a bayonet locksystem. To remove a cap use the spannerprovided (‘A’ Fig 1). Turn the capapproximately 20º anti-clockwise, lift upslightly, and then turn clockwise to remove(Fig 23).

Possible Problems:If the blue Filter valve stays fully down(permanently), and very little waste is beingflushed out, it is likely that the backwashinghas become ineffective and the mesh filterhas become blocked:

• Check the power supply to the SaturnBooster. If this is OK:

• Turn off the pond pump and the powersupply (to the Saturn Booster)

• Firstly, check that the blue valve is clearof debris by removing the blue cap. Ifdebris is holding the valve open, removeit and re-test for correct operation. Ifthere is still a problem carry out thefollowing checks.

• Remove the Saturn Booster’s lid byundoing the eight bolts with the Allenkey supplied (Fig 12).

• Turn on the Booster power supply. Watershould flow from both ends of the creamrotor causing the rotor to rotate.

• If there isn’t any water flowing out ofthe ends of the rotor, the backwashingpump is defective and needs replacing(see ‘Replacing Pump’).

• If water is flowing out of the ends of therotor but the rotor isn’t rotating, therotor may have become partially blockedand will need to be stripped down toclear the blockage (see ‘UnblockingRotor’).

• If everything appears in order, then cleanthe parts using a garden hose to removeany debris and reassemble.

If the red valve is up and water flows backinto the pond through the filter bypasshose, AND if the blue valve is in it’s normalrunning position (up), it is likely that there isa flow restriction downstream of the SaturnBooster:

• Check that the outlet hose between theSaturn Booster and your filter system isfree from obstruction, and that theoutlet hose does not rise more than 1m.

• If your filter system is sealed (i.e. waterdoes not return to the pond usinggravity), check and clean your filtersystem.

• If none of these are the problem, then itis possible that some debris may betrapped on the valve seat. To remove thedebris, remove the clear cap with the

spanner provided (Fig 23), and lift outthe red valve assembly. Remove anydebris, check the valve foam seal fordamage, and re-assemble.

If the flush away hose continues to dribblewater after flushing, raise and lower theflush-away handle a couple of times todislodge any debris that may haveprevented the valve from fully closing.

3. REPAIRReplacing Pump

• Turn off the pond pump and isolate thepower to the Saturn Booster.

• Disconnect the Saturn Booster’s cablefrom the power supply.

• Pull the flush-away handle up to lowerthe water level in the Saturn Booster.

• If necessary, disconnect the two hosesconnected to the inlet assembly.

• Remove the Saturn Booster lid byundoing the 8 bolts with the Allen keysupplied and place to one side (Fig 12)

• Gently lift the cream moulding up andout of the vessel (fig 13). This will bring thecomplete backwash assembly (including themotor) out of the vessel.

• Invert the backwash assembly on top ofthe vessel - there is sufficient slack in thepump power supply cable to do this (fig14).

At this point it is advisable to prepare forrouting the power cable of the new pump.The easiest way to do this is to attach somestring to the free end of the original powercable, this can then be used to pull the newpower cable through the cable gland to theoutside of the Booster:

• Loosen the cable gland where the powercable enters the vessel (fig 15).

• Attach about 2m of string to one of theinner conductors of the free end of thepower cable.

• Gently pull the power cable into theSaturn Booster until the string isaccessible from both inside and outside.This will be used to pull through thecable routing replacement pump powercable (Fig 16)

• Remove the string from the power cable.

• Undo the single central bolt (Fig 17) andgently lift off the black pump moulding.

• Unscrew the four screws holding themotor in place (Fig 18) and gently lift thepump and cable clear.

• Screw the replacement pump in using thesame four screws.

• Attach the string to the new power cableand gently pull all the way through untilyou have about 200mm slack (to allowthe backwash assembly to be turned thecorrect way around for reassembly).

Re-assembly is the reverse of dismantling,but note:

• Ensure the Backwash Assembly is locatedcorrectly (Fig 19).

• Using a 19mm spanner, tighten the nuton the cable gland (Fig 15), andremember to check it for leaks after re-starting.

• Ensure the main seal is securely locatedon the lid. It is slightly smaller than thelid to ensure it stays in place when the lidis inverted for assembly.

• Replace the lid carefully ensuring the lidseal is securely in place. Tighten all the lidbolts using the Allen key provided (Fig

20).

When restarting the Booster, follow theinstructions and check for leaks.

Unblocking the Rotor:• Turn off the pond pump and isolate the

power to the Saturn Booster.

• Disconnect the Saturn Booster cable fromthe power supply.

• Pull the flush-away handle up to lowerthe water level in the Saturn Booster.

• If necessary, disconnect the two hosesconnected to the inlet assembly.

Remove the Saturn Booster lid byundoing the 8 bolts with the Allen keysupplied and place to one side (Fig 12).Hold the cream moulding and carefullylift out the backwash assembly (Fig 13).Place the backwash assembly unit uprighton the ground. Undo the central boltholding the top of the backwashassembly using the Allen key supplied.(Fig 21). The cream rotor may now belifted up and removed (Fig 22). Inspectthe rotor for signs of blockage. If theblockage cannot be cleared by flushingthe rotor with a garden hose, it will needto be dismantled by undoing 8 screws.When dismantled, clean the inside of therotor. Re-assembly is done in the reverseorder to dismantling, but note: Beforereplacing the rotor, check for debris onthe upper white and the lower blackbearing and clean if required.

• The black rubber seal on the top of themesh filter and the seal on top of theinner vessel may have lifted off with thecream moulding. If so, remove the twoseals from the cream moulding andreplace on the mesh filter and innervessel before re-assembling.

• Replace the lid carefully ensuring the lidseal is securely in place. Tighten all the lidbolts using the Allen key provided (Fig20).

SPARE PARTSContact Hozelock Cyprio, Customer ServicesDepartment.

2 YEAR GUARANTEEIf this product becomes unserviceable within2 years of the date of purchase it will berepaired or replaced at the agent’s option -free of charge unless in the agent’s opinionit has been damaged or misused. To obtainthe benefits of this guarantee send theproduct along with proof of purchase directto Hozelock Cyprio, Customer ServicesDepartment.

Hozelock CyprioMidpoint Park BirminghamB76 1ABEnglandTel: 0121 313 1122www.hozelock.com

Item Numbers

1. Backwashing pump Z12795

2. Gauze drum Z12799

3. O-Ring set Z12740

4. System relief valve Z12750

1

2

3

4MAX1M

5 6

7 8A

9

10 11

A

B

B

8B

12 13

14 15

16

1718

19 20

21 22

Hozelock CyprioMidpoint Park, Birmingham, B76 1ABEngland.Tel: +44 (0) 121 313 1122www.hozelock.comThe Aquatics Division of Hozelock Group

33448-004

PLEASENOTE:Do notdispose of inhouseholdwaste

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