10
-- HOWYOUR REVERSEOSMOSIS SYSTEMWORKS--PREFILTER
Waterfromthecoldsupplypipe enterstheROas-
semblyprefilterfirst (FIG. 8 andschematicbelow).
Theprefilterhas a replaceablesedimentcartridge
withactivatedcarboninitscomposition.Thecar-
tridge(10micron)removes sand,silt,dirt,othersedi-
ments,anduptotheppmofchlorineshowninthe
specificationsfromthefeedwater.Chlorinewillde-
stroy theROmembrane.Filtered,clean,chlorine-
free waterflowsfromtheprefilter,totheROmem-
branecartridge.
IMPORTANT:Seeprefiltermaintenance,page11.
REVERSE OSMOSIS(RO) CARTRIDGE
Thecartridgeinsideof theROhousing,is a tightly
wound,specialmembrane.Waterisforcedthrough
thecartridgeandthemembraneremovesthedis-
solvedsolids andorganicmatter.Highqualityprod-
uct water(about1ounceper minute)exitstheRO
housingandgoestothestoragetank,ortothepost-
filterandROfaucet.Reject water,withthedissolved
solids andorganicmatter,isroutedthroughtheflow
controlandtothedrain.
STORAGETANK
Thestoragetankholdsup to2.3gallonsofproduct
water.Adiaphragminsidethetank keepswater
pressurizedtoabout30 psi,whenthetankisfull,to
providefastflow fromtheROfaucet.Thetank,when
empty,ispressurizedto5-7psi.
POSTFILTER
Afterleavingthestoragetank,butbeforegoingtothe
ROfaucet,productwatergoesthroughthepostfilter.
Thepostfilteris anactivatedcarbontypefilter.Any
remainingtastes andodors areremovedfromthe
product water.Taste-free,odor-free,clean,high
qualitydrinkingwateris availableforuse.
FAUCET
Thesinkorcountertopfaucethas a handoperated,
spring-loadedclosedlevertoprevent thewasteof
drinkingwater.Youcanalsokeepthefaucetopenby
pushingupwardontheleverandlockingitagainst
thefaucetspout.
Tocomplywithplumbingcodes,anair-gapisbuilt
intothefaucetdrainwaterconnection.
SHUTOFF ASSEMBLY
Toconservewater,thedrinkingwatersystemhasan
automaticshutoffsystem.Whenthestoragetankhas
filledtocapacity,andthedrinkingwaterfaucetis
closed,pressureclosestheshutoff tostopflowinto
theRO.Pressureinthestoragetankis abouthalfof
thewatersupplypressure.Afterdrinkingwateris
used,and pressureinthesystemdrops,theshutoff
openstoallow waterflowagain.
CHECK VALVE
Acheck valve(FIG. 10)islocatedintheoutletendof
theROhousing,oppositeofthecap.Thecheck valve
prevents a backwardflowofproductwaterfromthe
storagetank.AbackwardflowcouldrupturetheRO
membrane.
FLOWCONTROL
Waterflow throughtheROmembraneisregulated
bytheflowcontrol.Itmaintainsthedesiredflowrate
to obtainthehighestqualitydrinkingwater.The
flowcontrolislocatedinthe endof the1/4”red drain
tubing,at theROhousingdrainport.Asmall cone-
shapedscreenfitsoverthe endof theflowcontrolto
help preventpluggingwithdrainwatersediments.
PREFILTER
PRODUCT
WATER
STORAGE
ROMEMBRANE
check
valve
drainflow
control
AUTOMATIC
SHUTOFF
WATER
INPOSTFILTER
PRODUCT
WATER
FAUCET
airgap
gravity
drain
REVERSEOSMOSIS
SCHEMATIC
RED
YELLOW
BLUE
GREEN
PRODUCTWATER