Rainwater harvesting - Greg Morris
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Transcript of Rainwater harvesting - Greg Morris
domestic properties | commercial properties | educational establishments refurbishments | new builds | retrofits
rainwater re-use | soakaways
Raining champions
Rainwater harvestingDomestic and Commercial Solutions
domestic properties | commercial properties | educational establishmentsrefurbishments | new builds | retrofits
rainwater re-use | soakaways
Environmental Wastewater Solutions
Index
IntroductiontoRainwaterHarvesting. . . . . . . . . . . . . . . . . . . 2
TheCodeforSustainableHomes. . . . . . . . . . . . . . . . . . . . . . 3
RainRetainPremiumdomesticsystems. . . . . . . . . . . . . . . . . 4-5
RainRetainHighWaterTabledomesticsystems. . . . . . . . . . 6-7
RainRetainDeveloper’sdomesticsystem. . . . . . . . . . . . . . . 8
WPLSoakawaysandDomesticSUDSsolutions. . . . . . . . . 9
RainSustaincommercialsystems. . . . . . . . . . . . . . . . . . . . . . 10
RainBrainschoolsystems. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Technicalinformation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15
Introduction to Rainwater HarvestingIn this brochure, you will find product and technical information on WPL Limited’s range of rainwater harvesting systems which include:
• RainRetainPremiumdomesticsystems forthehomeandforthegarden
• RainRetainHighWaterTabledomesticsystems forthehomeandforthegarden• RainRetainDeveloper’sdomesticsystem forthehome
• RainSustaincommercialsystems• RainBrainschoolsystems
AllofourrainwaterharvestingsystemsaredesignedinaccordancewithBS8515:2009tothehigheststandards.WPLLimitedisanaccreditedmemberofbothBritishWaterandtheUKRainwaterHarvestingAssociation.
Why do we need rainwater harvesting?
Theneedforrainwaterharvestingisincreasingasourpopulationcontinuestogrow,andourprecious water reserves decline.Theeffectofclimate changeonourerraticweathersystemintheUK,meansthatthereiseitheranabundanceofwater(floods)ordrought(hosepipebans).
Furthermore,water charges continuetoincreaseyearonyearwithdemand.Waterisanexpensiveresourceweallcannotlivewithout.
How can rainwater harvesting systems help consumers, and the environment?
Bycollecting,filteringandstoringFREE rainwater,upto50%ofmainswaterconsumptionusedinthehome,canbesafelyreplacedwithoutanyinconvenience,savingyoumoneywhilsthelpingtheenvironment.
Therecycledrainwatercanbeusedfor:
• toiletflushing• laundry•generalcleaning•gardenirrigation•vehiclewashing
What are the other benefits of rainwater harvesting?
Surfacefloodingfromstormwatercanbereducedbycollectingexcessrainwater.Arainwaterharvestingsystemcanalsoaddsustainable value to your property,andfutureproofitswaterefficiencyratingundertheCode for Sustainable Homes.
By2016,allnewhomeswillhavetoachieveaCodelevel6starrating,soifyouareplanninganewbuild,bepreparedwithRainRetain!
What about non-domestic systems?
Commercialpremisescanalsobenefitinthesamewayasdomesticproperties,withRainSustainrainwaterharvestingsolutions.
Ifitisspecificallyforaschoolpremises,wehavedesignedacleversystemcalledRainBrain,whichhasin-builtlearningfeatures.
BoththesesystemsareECAapproved.TheGovernment’sECA(EnhancedCapitalAllowance)scheme,allowsbusinessestoclaim100%capitalallowanceonthesystemcost,inthefirstyear.
Forsystemspecifications,tanksizingandadvicepleasecontactourcommercialteamon08454504819.
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The Code for Sustainable HomesWhat is the Code?
It is a single, national standard for sustainable homesused by home designers and builders as a guide todevelopment, and by home buyers to assist in theirchoice of home.
The Code uses a sustainability rating system indicatedby stars to communicate the overall sustainabilityperformance of a home.
One star is the Code’s entry level, and 6 stars (the best) isthe Code’s highest performance level.
There are nine categories which make up the Code andone of the most important is water efficiency. Withinthis category there are minimum standards which mustbe achieved at every level of the Code, recognising itsimportance to the sustainability of a home.
Furthermore, the Code has a specific time line to zerocarbon sustainable construction by 2016, for both thepublic and private sectors.
It will also form the basis for future developments inBuilding Regulations relating to carbon emissions from,and energy use in, a domestic property.
In the water efficiency section code levels 3 or 4 have todemonstrate that mains water consumption is 105 litresper person per day, and for code levels 5 and 6 it’s evenless, at 80 litres per person per day.
The table below shows when the minimum, mandatoryCode level for a new home comes into effect in eachsector.
DATE PUBLICDATE PUBLICDA SECTOR PRIVATE SECTOR2008 Code level 3 stars Assessment mandatory*2010 Code level 4 stars Code level 3 stars2013 Code level 6 stars Code level 4 stars2016 Code level 6 stars(*Since May 2008 all homes which do not achieve theCode entry level (one star) rating, must include a nil-ratedcertificate in the compulsory HIPs (Home InformationPacks).A Code rated certificate or nil-rated certificate isin addition to the Energy Performance Certificate (EPS) inthe HIPs.)
When choosing a WPL RainRetain system, you can beassured of enjoying one of the highest quality systemson the market today whilst contributing to a zero carbonhome.
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RainRetain Premium Domestic SystemsThe RainRetain Premium domesticsystems are designed to the highestpossible standards, and use high
quality tanks, pumps and filters.There are two completesystems available in this range, the Home system and theGarden system, in tank sizes 2700 to 6500 litres.Largesystems of 7500, 9600 and 13000 litres use two tanks.
The turret system on the neck of the tank can rotate toallow the tank to be installed at any angle.This meansthe turret can be aligned to pipework independently of thetank itself, for easy installation.
The telescopic lid can be tilted to suit ground level onceinstalled for low visual impact.The excavation area issmall compared to other tanks and does not require a
concrete back fill (not applicable if there is a high watertable, see pages 6-7).The tanks are made of Duralen, a recyclable material,therefore, further reducing impact on the environment.A truly environmentally friendly system.
Made by injection compression moulding, the wallthickness is equal in all areas of the tank, for stability,reliability and strength.Yet it is lightweight and canbe supplied in two halves, making transportation andinstallation easy.
The tanks have a 15 yearguarantee and the pumps have a2 year guarantee.
Save up to 50%
of mains water
HOME SYSTEMEveryday, in the home,expensive drinking wateris used for toilet flushing,laundry and other suchuses.These are highconsumption uses whichcan be replaced withharvested rainwater.
The Home system usescutting edge pumptechnology, to runalongside the mains watersupply to the property,switching automatically asrequired between storedrainwater and mains water.
Cut-away turret showing:
•self-cleaning internal filter
•overflow siphon with rodent guard
• inflow stilling system
Systemalsoincludes(notshown):
•wall duct DN100
•floating water extraction unit
•PE Suction pipe 12m
15 yearguarantee
on tank
The Home system alsouses a highly efficient filterwhich is self-cleaning andhas a high water yield ofover 95%.
The self-cleaning filtercan be removed withoutthe use of tools for easymaintenance.
Uses:
• toilet flushing
• laundry
•garden irrigation
•car washing
•general cleaning
Home system includes tank(s) plus:
Dry, wall mountedpump control unit withautomatic mains switch.
Cut-awayshowing of theinternal filter.
Pump is WRAS compliant(system prevents cross contaminationof mains water and rainwater).
Mini telescopicdomeshaft with PE lid, forpedestrian loading.
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NEW!Easy hoseconnection in tank lid, withlift up flap
Submersible ordry mountedsuction pump.
Cut-awayCut-away turret showing:
• internal filter
•overflow siphonwith rodent guard
• inflow stilling system
•Spannfix pipe connection sleeve
Lift out filterinsert for ease ofcleaning. Systemalsoincludes(notshown):
•floating water extraction unit
•water hose extraction unit
•pressure hose 10m
Using recycled rainwater forgarden irrigation is the mostnatural way to keep yourgarden looking beautifulall year round.Withouta rainwater harvestingsystem, we use expensivedrinking water to water ourgardens.
The Garden system usessimple filters, and suppliesrainwater via a pressuresensitive pump as requiredfor garden irrigation, pluscar washing and generalcleaning, and has 100%water yield.
By using a pressuresensitive pump electricityconsumption is kept to aminimum.
Save expensive drinking
waterMini telescopicdomeshaft with PE lid, forpedestrian loading.
Uses:
•garden irrigation
•car washing
•general cleaning
Optional items for Home or Garden Systems
Vehicleloadingtelescopic domeshaft with cast iron lidfor installations underdrives.
PedestrianloadingMaxi telescopic domeshaft with PE lid, fortanks installed deeperinstallation.
Addtional submersiblesuction pumpkitforHomesystemtanksinstalledfurtherthan8mfromthemainpump.
Extensioncollarforevendeeperinverts.
Garden system includes tank(s) plus:
GARDEN SYSTEM
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RainRetain High Water Table Domestic Systems
Everyday, in the home,expensive drinking wateris used for toilet flushing,laundry and other suchuses.These are highconsumption uses whichcan be replaced withharvested rainwater.
The Home system usescutting edge pumptechnology, to runalongside the mains watersupply to the property,switching automatically asrequired between storedrainwater and mains water.
The RainRetain High Water Tabledomestic systems are designed to thehighest possible standards, and use
high quality tanks, pumps and filters.
The round design is stable enough to be completelyinstalled in groundwater or cohesive soil (e.g. loam)if required. We recommend also using a Geotextilemembrane for installations in groundwater, which isavailable from your local builders’ merchants.
There are two complete systems available in this range,the Home system and the Garden system, in tank sizes2000 and 3000 litres.The High Water Table domesticrange also has a tank designed to be lorry bearing, forinstallations under driveways.
The turret system on the neck of the tank can rotate toallow the tank to be installed at any angle.This meansthe turret can be aligned to pipework independently of thetank itself, for easy installation.
The telescopic lid can also be tilted to suit ground levelonce installed for low visual impact.
The tanks have a 15 yearguarantee and the pumps have a2 year guarantee.
The Home system alsouses a highly efficient filterwhich is self-cleaning andhas a high water yield ofover 95%.
The self-cleaning filtercan be removed withoutthe use of tools for easymaintenance.
Home system includes tank plus:
Uses:
• toilet flushing
• laundry
•garden irrigation
•car washing
•general cleaning
Cut-away turret showing:
•self-cleaning internal filter
•overflow siphon with rodent guard
• inflow stilling system
HOME SYSTEM
15 yearguarantee
on tank
Save up to 50%
of mains water
Systemalsoincludes(notshown):
•wall duct DN100
•floating water extraction unit
•PE Suction pipe 12m
Dry, wall mountedpump control unit withautomatic mains switch.
Cut-awayshowing of theinternal filter.
Pump is WRAS compliant(system prevents cross contaminationcontaminationof mains water and rainwater).
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Mini telescopicdomeshaft with PE lid, forpedestrian loading.
Cut-away turret showing:
• internal filter
•overflow siphon with rodent guard
• inflow stilling system
•Spannfix pipe connection sleeve
•Submersiblepump
NEW!Easy hoseconnectionin tank lid,with lift upflap
Garden system includes tank plus:
Uses:
•garden irrigation
•car washing
•general cleaning
Using recycled rainwater forgarden irrigation is the mostnatural way to keep yourgarden looking beautifulall year round.Withouta rainwater harvestingsystem, we use expensivedrinking water to water ourgardens.
The Garden system usessimple filters, and suppliesfiltered rainwater via apressure sensitive pumpas required for gardenirrigation, plus car washingand general cleaning, andhas 100% water yield.
By using a pressuresensitive pump electricityconsumption is kept to aminimum.
GARDEN SYSTEM
Submersible ordry mountedsuction pump.
Lift out filterinsert for ease ofcleaning. Systemalsoincludes(notshown):
•floating water extraction unit
•water hose extraction unit
•pressure hose 10m
Save expensive drinking
waterMini telescopicdomeshaft with PE lid, forpedestrian loading.
Optional items for Home or Garden Systems
Vehicleloadingtelescopic domeshaft with cast iron lidfor installations underdrives.
PedestrianloadingMaxi telescopic domeshaft with PE lid, fortanks installed deeperinstallation.
Addtional submersiblesuction pumpkitforHomesystemtanksinstalledfurtherthan8mfromthemainpump.
Lorry bearing tankfor installations underdriveways. (Only availablein 3000 litre capacity.)
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RainRetain Developer’s Domestic SystemWPLLimited’sRainRetainDeveloper’sSystemhasbeenspecificallydesignedwiththedeveloperinmind,tohelp
themachieveacosteffectivemeansofincorporatingsustainableproductsintheirdevelopments,particularlywhereminimumstandardsmustbemetunderTheCodeforSustainableHomes,forprivatehousing,housingassociationsandpublicsectorhousing.
TheRainRetainDeveloper’sdomesticsystemisavailableasacompleteHomesystem,intanksizes1600litreand3200litre(usingtwo1600litretanks),andareavailableinquantitiesof5ormore.
Thetanksarelightweightandcanbesuppliedintwohalves,makingtransportationandinstallationeasy.
Complete systems
Dry,wallmountedpumpcontrolunitwithautomaticmainsswitch.
Cut-awayfiltershowing:
• self-cleaningexternalfilter
•overflowsiphonwithrodentguard
• inflowstillingsystem
Thetelescopiclidcanalsobetiltedtosuitgroundlevelonceinstalledforlowvisualimpact.Theexcavationareaissmallcomparedtoothertanksonthemarketandisflushwithgroundlevelforlowvisualimpact.Oursystemdoesnotrequireaconcretebackfill.
Thetankshavea5yearguaranteeandthepumpshavea2yearguarantee.
Uses:
• toiletflushing
• laundry
•gardenirrigation
•carwashing
•generalcleaning
Everyday,inthehome,expensivedrinkingwaterisusedfortoiletflushing,laundryandothersuchuses.Thesearehighconsumptionuseswhichcanbereplacedwithrecycledrainwater.
Thehomesystemusesapumpwhichrunsalongsidethemainswatersupplytotheproperty,switchingautomaticallyasrequiredbetweenstoredrainwaterandmainswater.
Systemalsoincludes(notshown):
•pumpmounting
•valveandfloatswitch
•floatingwaterextractionunit
•PEsuctionpipe12m
Home system includes tank(s) plus:
Efficientelectricityconsumptionbyusingapressuredropactivationsystem,soelectricityisonlyusedwhenrequired.
HOME SYSTEM
Save up to 50%
of mains water
Soakaways and Domestic SUDS solutionsThis multi-purpose percolation tunnel has been designedto replace conventional drainage systems in bothsoakaway and surface water run-off applications.
The unique design offers 300 litres of storage per unitwhilst giving 3 dimensional percolation. One tunnel canreplace up to 36 metres of conventional drainage.
The percolation tunnel can be used as an overflow orsoakaway on rainwater harvesting systems and sewagetreatment plants.
As a soakaway, this system has the distinct advantage ofhaving a small footprint, meaning less ground excavationwhilst offering a favourable price-performance ratio whencompared to typical granular materials.
When used in conjunction with infiltration filters the tunnelmay be used for the attenuation and percolation of run-offfrom hard standing areas.
Building Regulations ( Part H ) now state that percolationis the preferred method for discharging stormwaterwherever possible.A statement endorsed by theEnvironment Agency and SEPA.
The percolation tunnel will contribute to SUDS throughsource control by helping to return runoff to the naturalenvironment at or near its source.
WPLpercolationtunnelfeatures:
•minimal footprint
• fast, easy installation
•3 dimensional percolation
•300 litres volume per unit
• soakaways or attenuation
•easy handling, lightweight
•stackable
•made from 100%
Sedimentationfiltershaftfittedflushwiththeground,withoutflowtoinfiltrationtunnel
Infiltrationfilter fittedflushwiththeground,whichcanhaveoutlettoinfiltrationortankandoverflowtosewerordrains,forhardstandingrun-off
Cut-awaysectionofpercolationtunnelshowingtheinflowandpercolationofstormwater
Percolation system may include:
Singlepercolationtunnel
Endpiece
Percolationtunnelinstalledunderhardstanding(min50cmearthcoveringwithtrafficload)
Percolationtunnelinstalledunderlawn(min25cmearthcoveringwithouttrafficload)
Inspectionend
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•made from 100%
recycled material
Deaerationpipe
Percolationtunnels shown as a surface water run-offoffof application (SUDS).
Percolationtunnels shownasasoakaway.
10
RainSustain Commercial SystemsProjectsinvolvingcommercialpremisesalsobenefitfromrainwaterharvestingsytems.Costsavingscanbemade
onmainswaterconsumptionusessuchastoiletsandcommerciallaundry.OurRainSustainbespokesystemscanprovidetherightsolutionforyourpremises.
Aswellassavingcosts,WPLRainSustainsystemscanhelpimprovetheimpactontheenvironmentofanorganisation’sdaytodayactivities,andreduceitscarbonfootprint.
WPLLimitedoffersbespoke,fullypackagedautomatedsystemsforanycommercialapplication,withafulldesignandadvisoryservice.
TheWPLRainSustainRainwaterHarvestingsystemhasbeenaccreditedbytheEnhancedCapitalAllowanceScheme(ECA)throughTheCarbonTrustonbehalfoftheGovernment.
ThismeansthatbusinessesinvestinginaRainSustainrainwaterharvestingsystemcanclaim100%firstyeartaxreliefontheirqualifyingcapitalexpenditure.Businessescanwriteoffthewholeofthecapitalcostoftheirinvestmentagainsttheirtaxableprofitsduringtheperiodwhichtheymaketheinvestment.
Systemsmayincludethefollowing:
•abovegroundandbelowgroundtanks
• lownoiseselfprimingpumps
•directfeed,dutyassistanddutystand-by
•floatingsuctionpumpwithsubmerged
microfilter
•accessiblefiltersforservicing,cleaning
andmaintenance
•displaypaneloptionalshowingtanklevels
andusage
• toiletflushing
• laundry
(e.g.commercial)
•generalcleaning
• irrigation
(e.g.commercial)
• vehiclewashing
(e.g.fleet)
RhinoHouseatWhipsnadeZooTherecycledrainwaterisusedfortherhinostoshowerintheirenclosure
Bespokesolutions
ApprovedtanksizesfortheECAschemeare:
•25m3
•50m3
•60m3
•70m3
•marinas
•hotels
•publichouses
•offices
•schools
•hospitals
• factories
•supermarkets
•universities
• industrialbuildings
•publicsector
• zoos
• leisurefacilities
Applicationsmayinclude:
Usesmayinclude:
RainBrain School Systems
Systemsmayincludethefollowing:
•above ground or below ground
tanks
•pump and control module
•simple leaf and debris filters
•UV sterilisation unit
•back up mains water connection
•display panel optional showing
tank levels and usage
Displaypanelincludes:
•digitaldigital depth indicator displays the depth of water
storedstored in the tank
• rotameterrotameter visual indicator of flow and quality
•digitaldigital usage indicator
•digitaldigital slide show presentation describing the
rainwaterrainwater harvesting process
Usesmayinclude:
• toilet flushing
• laundry
•general cleaning
• irrigation of school
grounds
•vehicle washing
ApprovedtanksizesfortheECAschemeare:
•25m3
•50m3
•60m3
•70m3
11
“By 2020, the Government would like all schools to bemodels of energy efficiency, renewable energy use andwater management. They should take the lead in theircommunities by showcasing wind, solar and bio-fuelenergy, low-energy equipment, freshwater conservation,use of rainwater and other measures.”
From Sustainable Schools National Framework,teachernet.gov.ukteachernet.gov.uk
The RainBrain School system isdesigned to help schools becomemore sustainable and can contribute to
qualifying for green flag status, through the Eco-Schoolsprogramme.
The RainBrain system has a wall mounted, digital displaypanel to be used as a dynamic teaching aid in the school.It shows water stored and water used and has an in-builtpresentation.
The RainBrain gives students the opportunity to getinvolved in projects for their school regarding savingwater and it also educates them about sustainable issueswhich will be relevant throughout their lives.
Key benefits include:
•saving resources
• recognition and publicity for the school
• fundraisingopportunities in the local
community
•coordinating with the curriculum
• improving the school into the future
•motivating students
The RainBrain system is supplied as either a standardpackaged system or a bespoke solution.
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Dimensions 2700litre 3750litre 4800litre 6500litre 7500litre* 9600litre* 13000litre*
Length 2080mm 2280mm 2280mm 2390mm *systemcomprisestwoundergroundtanksofequalsize
Width 1565mm 1755mm 1985mm 2190mm *systemcomprisestwoundergroundtanksofequalsize
Height (including tank dome) 2010mm 2200mm 2430mm 2710mm
*dimensionsetcarefor2x3750litretanks
*dimensionsetcarefor2x4800litretanks
*dimensionsetcarefor2x6500litretanks
Height of tank dome 610mm 610mm 610mm 610mm
Internal ø of tank dome 800mm 800mm 800mm 800mm
Weight 120kg 150kg 185kg 220kg
Groundwater• Groundwaterstableuptothemiddleofthetank****IfthegroundwaterisabovethispleaseseedetailsofourHighWaterTableSystem• Requiredearthcoveringof800mm
Pedestrian Loading
Telescopic dome shaft with PP lid
*Mini pedestrian loading *(supplied as standard)• IncludingPPcoverwithchildprooflock• Thetankisflushwiththeground• ForusewithHomeorGardensystems• Infinitelyadjustablefrom750mm–950mm
earthcoveringabovethetank• Canbetitledby5°• Colour:Grassgreen• Length:360mm• Øinner:600mm• Øouter:778mm• Weight6kg
*Maxi pedestrian loading *(optional extra)• IncludingPPcoverwithchildprooflock• Thetankisflushwiththeground• ForusewithHomeorGardensystems• Infinitelyadjustablefrom750mm–1050mm
earthcoveringabovethetank• Canbetitledby5°• Colour:Grassgreen• Length:476mm• Øinner:600mm• Øouter:850mm• Weight13kg
Vehicle Loading
Telescopic dome shaft with cast iron lid
*Vehicle loading *(optional extra)• ClassBcastironcover• ForusewithHomeorGardensystems• Thetankisflushwiththeground• Infinitelyvariablefrom750mm-1050mmearthcoveringoverthetank• Length:476mm• Øinner:600mm• Øouter:850mm
Garden System
Filter• Filterintegratedintothetank• 100%wateryield• Inflowstillingsystemforcontrollingthe
waterinflow• Overflowsiphonandrodentguard• Spannfixpipeconnectionsleeve
Pump• Submergedsuctionpump• Floatingwaterextractionunit• Waterhoseconnectionbox• 10mpressurehose
Home System
Filter• Selfcleaningfilterintegratedintothetank• 95%wateryield• Inflowstillingsystemforcontrollingthe
waterinflow• Overflowsiphonwithrodentguard
function• Spannfixpipeconnectionsleeve• Tankandfilteroverflowareconnectedto
thesewernetworkwiththisfilterpackage
Pump• Wallmountedwithintheproperty• Quietrunning• Integrateddryrunningprotection• Watersupplycontrolunit• Floatingwaterextractionunit• DN100wallduct• 12mSuctionpipe
RainRetain Premium Domestic Home system and Garden systemTechnical Information
Dimensions 2000 litre 3000 litre
Length 2190 mm 2880 mm
Width 2010 mm 2480 mm
Height 1300 mm 1400 mm
Internal ø of tank dometank dome 650 mm 650 mm
Weight 115 kg 165 kg
Groundwater • Canbeinstalledingroundwaterandstratumwater,aswellascohesivesoils(e.g.loam)• Themaximumgroundwaterlevelcorrespondstothetopedgeofground
Pedestrian Loading
Telescopic dome shaft with PP lid
*Mini pedestrian loading *(supplied as standard)• Including PP cover with childproof lock• The tank is flush with the ground• For use with Home or Garden systems• Infinitely adjustable from 750 mm–950 mm
earth covering above the tank• Can be titled by 5°• Colour: Grass green• Length: 360 mm• Ø inner: 600 mm• Ø outer: 778 mm• Weight 6 kg
*Maxi pedestrian loading *(optional extra)• Including PP cover with childproof lock• The tank is flush with the ground•For use with Home or Garden systems• Infinitely adjustable from 750 mm–950 mm
earth covering above the tank• Can be titled by 5°• Colour: Grass green• Length: 476 mm• Ø inner: 600 mm• Ø outer: 850 mm• Weight 13 kg
Vehicle Loading
Telescopic dome shaft with cast iron lid
*Vehicle loading *(optional extra) LORRY BEARING TANK MUST BE SPECIFIED 300 LITRE ONLY• Class B cast iron cover• For use with Home or Garden systems• The tank is flush with the ground• Infinitely variable from 750 mm - 1050 mm earth covering over the tank• Length: 476 mm• Ø inner: 600 mm• Ø outer: 850 mm
Garden System
Filter• Filter integrated into the tank• 100% water yield• Inflow stilling system for controlling the
water inflow• Overflow siphon and rodent guard• Spannfix pipe connection sleeve
Pump• Submerged suction pump• Floating water extraction unit• Water hose connection box• 10 m pressure hose
Home System
Filter• Self cleaning filter integrated into the tank• 95 % water yield• Inflow stilling system for controlling the
water inflow• Overflow siphon with rodent guard
function• Spannfix pipe connection sleeve• Tank and filter overflow are connected to
the sewer network with this filter package
Pump• Wall mounted within the property• Quiet running• Integrated dry running protection• Water supply control unit• Floating water extraction unit• DN 100 wall duct• 12m Suction pipe
RainRetain High Water Table Domestic Home system and Garden systemTechnical Information
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Dimensions / weight 1600litre 3200litre*
Min Ø 1090mm
*systemcomprisestwoundergroundtanksofequalsize
Max Ø 1350mm
Height 1600mm
Material ReinforcedPolypropylene(UVstableand100%recyclable)
Weight 60kg
Connections Each2xDN70,DN100andDN200forstandardpipe
Groundwater• Duetoitsstrongdesignandthereinforcedmaterial,thetankcanbe
safelyinstalledinareasofhighgroundwater,providedtheappropriateinstallationinstructionsarestrictlyfollowed
Pedestrian and Vehicle Loading • Forpedestrianloadingwithplasticcoverorforvehicleloadingwithcastironcover
Home System
Filter• Only10mmheightoffset
betweentheinletandoutlet• Continuouslyvariable
installationdepthof485mm-970mm(19.1-38.2”)usingthetelescopicdomeshaft
• Standard100mmconnections• Sieveinsertmeshwidth0.35
mm• Smoothsurface,maximumself-
cleaning
Pump• Wallmountedwithintheproperty• Energysavingmotor• Quietrunning• Dryrunningprotection
Volume 300litre
Length 1160mm
Length ( inc end plates ) 1220mm
Width 800mm
Height 510mm
End connections 100,150,200,300mm
Top connections 100,200mm
Weight Approx11kg
Material 100%recycledpolypropylene
Installation depth pedestrian Min250mmbelowlawn/groundlevelplusheightoftunnel(s)
Installation depth vehicle Min500mmbelowhardstanding/driveplusheightoftunnel(s)
RainRetain Developer’s Domestic Home system Technical Information
Percolation Tunnel Technical Information
Capacity
1700 litre*
*can be installed in seriesfor larger systems
2700-13000 litre*
*can be installed in series forlarger systems
13000-200000 litre*
*may consist of more than onetank for larger systems
Type of tankCellar tank
(for cellar and aboveground systems)
Domestic tank(for smaller commercial
systems)
Commercial tank(for larger commercial
systems)
Material Polyethylene Duralen GRP
FilterOut of tank filter
(specified individuallyfor each system)
Out of tank filter(specified individually for
each system)
Out of tank filter(specified individually for
each system)
Pump A range of submersible and above ground suction pumps is available(specified individually for each system)
Display Panel
Digital depth indicatorRotameter
Digital usage indicatorDigital presentation
UV Filter(bespoke display panel can be made for each system including schools)
RainSustain and RainBrain Commercial systemsTechnical Information
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Other Products by WPL Limited
DiamondDomesticSewageTreatmentPlants
HiPAFCommercialSewageTreatmentPlants
GreaseGuzzlerCommercialGreaseManagement
TransportableWastewaterTreatmentModules
IndustrialEffluentTreatment
UtilitySewageTreatment
PlantServicing
MaintenanceContracts
Availability WPLLimitedholdsextensivestockofitsfullrangeofrainwaterharvestingproductsandoffersarapidlogisticsservice.
Guarantee Pleaseseetheproductpagesofthisbrochurefortankandpumpguarantees.
Installation, Service and Maintenance AllproductssuppliedbyWPLLimitedareprovidedwithcomprehensiveinstallationmanuals,whichincludemaintenanceadvice.ServiceandmaintenanceadviceisavailablefromWPL,pleasecontacttheServiceTeamon(023)92242600forfurtherinformation.Commissioningandannualservicecontractsarealsoavailableforourbespokecommercialrainwaterharvestingsystems,pleasecontacttheServiceTeamon(023)92242600.
Where to buy WPL products
Visit www.wpl.co.uk for more information
Call: +44 (0)845 450 4818 Fax: +44 (0)23 9224 2624 Click: [email protected] Web: www.wpl.co.uk
WPL Limited Units 1 & 2 Aston Road Waterlooville Hampshire PO7 7UX United Kingdom
WPL Limited registered in England & Wales NI 2583411 VAT No. 568 3801 15. WPL Limited has a policy of continual product development and the above information may be subject to change without notice. WPL Limited are fully compliant with the British Water Code of Practice. Version EJ002AUG09
R IB A C PD
ASS
ESSEDM
ATERIA
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About WPL Limited WPL Limited provides innovative and reliable wastewater treatment, rainwater harvesting and grease management systems for domestic, commercial and industrial markets as well as holding a prominent position as a supplier to the water companies. As an internationally recognised leader in the design, manufacture and supply of both standardised, and bespoke environmental solutions, WPL Limited is dedicated to ensure the provision of high quality products and services.
Environmental PolicyWPL Limited is ISO14001 accredited. WPL Limited rigorously fulfils its vision of protecting the environment by delivering reliable wastewater solutions. A strong focus on quality and compliance ensures that all wastewater treatment systems are designed to work within the guidelines of the British Water Code of Practice and exceed all present and proposed discharge consent standards enforced by the Environment Agency, SEPA and other regulatory authorities.