Installation Guide

PSI,useabicyclepumptogettheairpressurewithinthatrangeandreconnectthetanktothe
system.
● Ifthetankfeelsfullandnowateriscomingfromthefaucet,thetankbladdercouldbebroken.
Youcanverifythisbymeasuringthetank’sPSIanditbeingzero.

LittlewaterfromtheROfaucet
Tankisheavyandappearsfullofwater,butthestreamturnsveryweakafterafewseconds.
Ifthereisnochangeinthesupplywaterpressure,theproblemisverylikelyfromthetank.Itcouldbe
duetolowtankpressureorbrokenbladder.Performthefollowingstepsfirst.
1. Shutoffmainwatersupply
2. Getabucketunderthetankandremovetankbydisconnectingtheballvalve.
3. Dumpthewaterfromthetankbyturningitupsidedown(throughthetopstem).Youmayadd
airfromthefrontvalvetohelpemptyingthewater.
4. Useagaugeatthefrontairvalvetochecktankpressure.Itshouldbewithin710PSI.Iftoo
low,youcanuseabicyclepumptoaddmorepressuretothetank.
5. Reconnecttanktothesystemandturnonthewatersupply.
ContinuousDrain

AllROsystemsrequiredrainwater.Thedrainwatershouldrunonlywhenthesystemisproducing
water.TheratioofdrainwatertoROwaterisabout2:13:1forourresidentialROsystems(SideFlow
systemshavealower1:1ratio).Thedrainshouldstopafterthetankisfull.Allow3hourstoensurethe
tankhasbeenfilledcompletely.Ifthedrainisstillrunning,trythefollowingtodeterminethecause:
● Whatisyourincomingwaterpressure?Ifitisbelow45PSI,thisislikelythecauseofthe
continousdrain.WhenthereisnotenoughwaterpressuretoforcethewaterthroughtheRO
membrane,mostorallofthewaterwillgotothedrain.Becausethewaterisunabletoget
throughtheROmembrane,thetankneverfillsup,andnevertriggersthesystemtocutoffthe
watersupply. 
● Closethetankvalveandwait20minutes.After20minutes,removetheblackdrainlinefrom
thedrainpipetoseeifithasstoppeddrainingcontinously.Ifithasstopped,wewillknowthe
continousdrainhassomethingtodowiththetank,andyouwillwanttofollowthedirections
belowtochecktheairpressureinthetank.Ifithasnotstopped,wewillknowithassomething
todowiththesystem,likelytheautomaticshutoffvalve(ASOV)orcheckvalve(thecheck
valveistheelbowfittingatthepurewateroutletofthemembranehousing).
● Ifthecontinousdrainstoppedafteryouclosedthetankvalve,youwillwanttomeasuretheair
pressureinthetank.Shutoffthemainwatersupplytothesystem,andopenthefaucettodrain
thetank.Afterthefaucetstopsdripping,closethetankvalve,removetheconnectedyellow
tube,andtakethetankoutsideorsomewherethatcangetwet.Removethetankvalvefromthe
topofthetank,andturnitupsidedowntodrainoutanyremainingwater.Then,useastandard
tirepressuregaugetochecktheairpressureatthenozzleonthebottomhalfofthetank.Theair
nozzleisunderascrewoffbluecap.Ifthepressureisnotbetween710PSI,useabicycle
pumptogettheairpressurewithinthatrangeandreconnectthetanktothesystem.
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