Please keep this Owner’s Manual for future reference.It contains useful information on how to maintain and care for yourAPEC Reverse Osmosis water filter system.TABLE OF CONTENT1.Installation:2.Maintenance:3.Owner’s Manual - RO Basics:4.Trouble-shoot Guide:5.Other Information:6.Warranty . page 38Preparation .Filter housings assembly .Feed water connection .Drain saddle connection .Faucet mounting .Connecting the whole system .pagepagepagepagepagepage156101213Filter change schedule & instructions . page 18System flow diagram .Input water pressure: most important factor .TDS meter: testing your water quality .Tank volume & delivery pressure .Misc. topics .RO Head diagram .Humming noise .No water at dispensing faucet .System slow shut-off .TDS level higher than normal .Filter housing is leaking .Tank ball valve is leaking .Pure water still taste like Tap water .Air bubble in cup or bottle when filling epagepagepagepage282929313334353535AirGap Faucet Installation . page 36

Thank you for choosing APEC reverse osmosis systems.You now own the finest water filter in America.Please read and become familiar with instructions and parts needed before proceeding with theinstallation.(This manual is constructed for standard APEC Ultimate RO System. For RO-PH90, RO-PERM andRO-PUMP system installation, please refer to the included addendum.)BEFORE INSTALLATION:Inspect the system:Please take the system and all the components out of the box. Inspect the system and all theconnection fittings carefully, make sure nothing is damaged during shipping. If any part is crackedor broken, please do not proceed with the installation and contact APEC or your distributor for anexchange or diagnosis.Recommended tools list: Variable speed drillDrill bit: 1/4” (for the waste line), 1/8” (as pilot, not mandatory), and 1/2” (for standardfaucet hole, air-gap faucet requires 1&1/4” hole)5/8”, 9/16” open-end wrench, or adjustable wrench, pliersPhillips screwdriverUtility knife, or scissorsTeflon tapeOperating Parameter Operating pressure: 85psi maximumFeed water temperature: 40 – 100 degree F (4-37 degree C)Do not connect this unit to hot water sourceInstall the RO in a sheltered environment, avoid exposure to hot and cold weather or underdirect sun light.General Installation/Operation/Maintenance Requirements Installation needs to comply with state and local laws and regulations.System must be installed indoor away from possible environmental damageDo not use with water that is microbiologically unsafe or of unknown quality withoutadequate disinfection before or after system. Systems certified for cyst reduction may beused on disinfected water that may contain filterable cysts. This reverse osmosis system contains a replaceable treatment component critical foreffective reduction of total dissolved solids. The product water shall be tested periodically toverify that system is performing satisfactorily.Copyright:This manual is copyrighted by APEC Inc. Under the copyright laws, this manual may not be reproduced in any form, inwhole or part, without the prior written consent of APEC Inc. Manual print ver. 3.2, 2015 Jul.1

Components included with the RO system:Make sure you have all these parts before starting installation.1 RO system headwith pre installed membrane3 Pre-filters in 3 Housings1 Storage tankInstallation kit includes:1 Faucet withwashers and nuts3 Color tubing 1/4”1 Feed water adaptor3/8”- 1/2”with needle valve kit1 Tank’s Ball Valve1 Drain saddle for waste water2 Wrenchesfor opening filter andMembrane housing21 Faucet Adapter

Component Itemization:1)Sediment pre-filter and housing (1st-stage filter)2)Carbon block pre-filter and housing ( 2nd-stage filter)3)Carbon block pre-filter and housing ( 3rd-stage filter)4)Membrane and housing (4th-stage filter)5)In-line carbon filter (5th-stage filter)6)Storage tank7)Tank ball valve8)ASO – Automatic Shut Off valve9)Check valve (Internal check valve encased in plastic fitting)10)T-fitting11)Feed water inlet12)Product (filtered) water outlet13)Bracket3

Fitting Types: There are 2 types of fittings provided for connecting the system1. Quick-Connect (QC) fitting: (no insert, sleeve, or nut) Most of the fittings on the RO unit are thistype.Fig. 1AFig. 1How to Connect: - See Fig.1. Push the tubing into the Quick-Connect fitting, then gentlypull back on the tubing to make sure connection was secure.- No inserts, sleeve, or nuts are needed to secure the connection.- No Teflon tape!To Disconnect:- See Fig.1A. Push in and hold down on the collet ring square againstthe fitting. With the collet held in this position the tube can be removed.2. Metal compression nut fitting: (comes with 1 insert, 1 sleeve, 1 nut) Only feed wateradapter-needle valve is this type.Fig.1BImportant! Use plastic sleeve and inserts on the plastic tubing weprovide. Do Not use metal sleeve or insert on plastic tubing or theconnection will leak!How to connect: - See Fig.1B. Slide the compression nut onto the tubing.- Slide the plastic sleeve onto the tubing.- Insert the “insert” into the tubing.- Insert the tubing into the opening of the fitting.- Slide the brass nut up, then tighten nut with a wrench. No Teflon tape!(An extra metal sleeve is provided in case you need to connect your own metaltubing. Use Teflon tape if connecting metal tubing.)4

THERE ARE TWO PARTS TO INSTALLING THE RO SYSTEM:Part I.Part II.Assemble the filters and housings onto the main systemInstalling the systemNote: The RO Membrane Element has already been pre installed.PART I. ASSEMBLE THE FILTERS AND HOUSINGS ONTO THE MAIN SYSTEMRemove plastic/paper wrappings on the 3 filters, put them into the 3 housings, and assemble thehousings onto the main system as follow:1. See Fig. 2 Stand the 3 housings upright. Make sure each housing has a rubber O-ring in itsgroove.Put the APEC Sediment filter (1-SED10) into the “1st stage” housing on the right.Put the APEC Carbon filter (23-CAB10) into the “2nd stage” housing in the middle.Put the APEC Carbon filter (23-CAB10) into the “3rd stage” housing on the left.2. See Fig. 3 Starting from the 3rd stage housing on the left, hand twist the housing onto the mainsystem turning counterclockwise, one by one, for all 3 housings.3. See Fig. 4 Use the wrench provided to completely tighten the housing starting from 1st-stage.Repeat this step for the 2nd stage housing in the middle, and for the 3rd stage housingon right.Note: For some people it is easier to use the wrench with the system laid down(face up).4. See Pg. 3 Remove 3 end plugs (white color) from Point 10,11,12turn counter-clockwiseto tighten3rdStage3rdStageFig. 2UseWWrench2ndStageFig. 4Fig. 351stStage

PART II. INSTALLING THE SYSTEMSpace: Make sure there is sufficient space under the counter for installation (an area of about17”L x 6”W x 18”H for the system, 11”D x 18”H for tank).The RO system is best installed under the kitchen sink. But if that is not feasible youcan install the system anywhere where there is a cold water supply with sufficientwater pressure for the chosen RO model, and an outlet to drain off the waste waterfrom the system.Mounting: No need to mount the RO system on the wall. The RO system can stand in the sinkcabinet without mounting, this makes future filter change easy and convenient. Ifyou prefer to mount the system to the wall, please make sure it can be taken downeasily for filter replacement.Feed Water: RO systems are designed to treat both hard and soft water and can handle incomingTDS levels up to 2000ppm.Step 1: Feed Water ConnectionThe RO system must be connected to the COLD water supply only!1. Locate the Cold water supply valve under the kitchen sink (the round or oblong handle onthe right side). Turn off the incoming cold water completely by turning the shut off handleclockwise.Note: If the cold water shut off valve can not turn off the water, the main water supplyto the house must be shut off for the installation. Another option is to use a “selfpiercing saddle valve” from APEC or from a local hardware store.2. Feed Water Adaptor (1/2” to 3/8”): See Fig. 5. The Feed Water Adaptor comes with aseparate Needle Valve. The Adaptor goes inline onto your 1/2” or 3/8” cold water pipe. TheNeedle Valve portion screws onto the Adaptor as shown in Fig. 5A.A. 1/2” x 3/8” Male-Female Water Supply Adapterwith O-ring.B. 1/2” x 3/8” Male-Female Converter with O-ring.C. 1/4” x 1/8” Male Needle Valve.Fig. 56

Fig. 5A - Needle Valve Installation.Attach the needle valve (C) to water supply adapter (A). Please apply 5-6 wraps ofteflon tape to needle valve prior to connecting it to the water supply adapter (A).Fig. 5B - If your pipe has a 1/2” Connection.By attaching the 1/2” x 3/8” converter (B) to the Male end of the water supply adapter(A), you now have a 1/2” Male and Female water supply adapter.Fig. 5C - If your pipe has a 3/8” Connection.By attaching the 1/2” x 3/8” converter (B) to the Female end of the water supplyadapter (A), you now have a 3/8” Male and Female water supply adapter.Fig. 5A1/2” Connection3/8” ConnectionFig. 5CFig. 5B7

3. Recommend Connection For Flex Line Riser: See Fig.6A. & Fig. 6D. Loosen nut andseparate cold water riser tube from faucet shank. Gently bend riser tube so that the FeedWater Adapter (Fig 5) fits onto the faucet shank. If your riser tube has no built-in washer, thenfit the cone-shaped washer provided onto the riser tube. Connect the riser tube, the feed wateradapter, and faucet shank together and tighten.For Solid Copper Riser: See Fig.6B. Follow the same procedure as for flex line. If the copperriser cannot bend, then it’s best to replace it with a flex line riser. Then fit the feed water adaptorthe same way as described above.Option Connection Point: See Fig. 6E. The feed water adapter can also be installed between theriser tube and faucet shank. Loosen nut and separate cold water riser tube from faucet shank.Gently bend riser tube so that the Feed Water Adapter fits onto the faucet shank. Connect theriser tube, feed water adapter, and faucet shank together and erTubeFeed WaterAdaptorFeed WaterAdaptorMain WaterSupplyShut-offValveMain WaterSupplyShut-offValveFor Solid LineFor Flexible LineFig. 6AFig. 6B8

Fig. 6CFig. 6DFig. 6E4. Needle Valve: See Fig. 6C. Screw the Needle Valve onto the Adaptor tightly. Apply 6-8 roundsof Teflon tape onto Needle Valve before attaching it to the Adaptor.To open needle valve:To close needle valve:Turn needle handle counter-clockwise.Turn needle handle clockwise.Test for leaks at this point: Close the Needle Valve (turn needle handle clockwise all theway in to close) Turn ON the cold water supply to the sink faucet. If the Needle Valve or theAdaptor leaks, check the connection and try applying more Teflon tape or tighten the brassnut some more to stop the leak.9

Step 2: Drain Saddle InstallationNote:To avoid annoying drainage noise, mount drain line as low as possibleon the vertical tailpiece, or on horizontal tailpiece.There is constant water pressure “packed” inside the RO system which blocks the waste waterfrom backing-up into the system. So the waste water is “forced-drained”, not “gravity-drained”.1. See Fig.7. The drain saddle assembly should be installed above the trap and on the verticalor horizontal tailpiece . To reduce the drainage noise, mount the drain line as low as possibleabove the trap, or on the horizontal tailpiece.MOUNT DRAINSADDLE ATEITHERLOCATIONFig. 72. See Fig.8. Mark the position of the hole on the drain pipe and drill a 1/4’’ hole through oneside of the drain pipe . There is a piece of self-adhesive sponge provided. Glue this spongeto the inside of the saddle, this will cushion any gap between the saddle and the pipe. Makesure the hole on the sponge is thoroughly punched out, and is aligned to the hole on thesaddle.Fig. 8Fig. 910

3. See Fig.9, 9A. Make sure to align the drain saddle hole to the drilled hole perfectly.Mis-aligning these two holes will block the waste water and cause membrane damage.Attach the drain saddle to the drain pipe and tighten the two screws evenly.Fig. 9AStep 3: Drill A Hole For The RO FaucetDrill 1/2” diameter hole for standard RO faucet. (Air-Gap faucet: drill 1&1/4” hole.)For best results use a 1/2” carbide-tipped masonry drill bit.Wear safety glasses to protect your eyes while drilling the faucet hole.Note: No need to drill a hole if an existing hole is available:a) Spare hole: If there is a spare hole in the sink covered by a chrome cover, simply remove thechrome cover and install the RO faucet there.b) Spray hose: If the spray hose is not in use, remove the hose, and mount the RO faucet there.Remember to plug up the outlet under the main faucet. If the spray hose uses a diverter at the base ofthe spout, be sure to remove it to avoid trouble later on.c) Hanging faucet: If drilling a hole is not feasible (i.e. rental home, drill tool not available etc.),the faucet can just on the cabinet door or wherever that is convenient. Be creative!When drilling a hole for the RO faucet, choose a location that looks good, works well, and ismost convenient for dispensing pure water. An ample flat area is required for the faucet base sothat the faucet can be drawn down tightly.1. Faucet location: Make sure the faucet stud will be accessible from below when the holeis drilled. If space is not available on the upper sink area, the faucet can be located on thecounter top by the edge of the sink. If the counter top is ceramic tile, the method for drillingthe hole will be the same as for porcelain sinks.2. For Stainless Steel Sink: Before using a 1/2” carbide drill bit, an indent should be madewith a center punch to keep the drill bit from walking. A small pilot hole will also aid the drillbit.11

3. For Porcelain Sink: Porcelain enameled sinks can readily be chipped if care is not exercisedwhen drilling the hole. Before starting the drill motor, apply firm downward pressure on the bituntil a crunching occurs. This will help keep the drill bit from walking when starting the hole.A small pilot hole will also aid the drill bit.Note: Immediately after the hole drilling is done, clean up all metal chips, as metal chipswill stain the porcelain!!Step 4: Mounting The Faucet1. Mount the faucet as shown in Fig.10.2. Attach threaded end of faucet adapter to thefaucet metal stem. No teflon tape needed here.3. Connect the Clear line to the faucet.3. The faucet has a solid metal handlethat controls the flow of purified waterexiting the faucet. Turn the handle tohorizontal position to release the waterand vertically to shut off.Fig. 10Chrome BaseCounter TopCounter TopOpeningBlack Locating WasherLock WasherLock NutFaucet AdapterTubingStep 5: Positioning The System1. Main System: The main system can stand in the sink cabinet. No needto mount the system to the wall. If you prefer to mount the system to thewall, please make sure it can be taken down easily for filter replacement.2. Tank: The storage tank can also lay on its side if needed. The tank works fine in thisposition. If the tank cannot fit under the kitchen sink, it can be placed elsewhere up to 20 feetaway from the RO system without much pressure loss.12

Step 6: Connecting The SystemSummary of Tubing Connections:There are 4 connections:See Fig 11 and 11APoint A to X:Connect RO to COLD water supply — Red tubing.Point G to Y:Connect product water from 5th-stage filter to tank — Yellow tubing. This tubingis a 2-way line, Product water enters and leaves the tank via this line.Point H to Z:Connect product water from 5th-stage output to RO faucet — Clear tubing.Drain line to W: Connect waste water from 4th-stage membrane to drain outlet — Black tubing.Please Note:The diagram below is for our Non Pump RO-45, RO-90 and RO-PH90. Ifyou are installing the RO Perm or RO Pump, please refer to the diagram in theaddendum.Fig. 1113

Fig. 11ADetails on Tubing Connections:To ensure a smooth and correct installation, please connect the water lines following the sequence and order outlined below. Refer to Fig.11 & 11A for proper point locations.1. Point ZFaucet connection:Tubing color:Fitting type:Clear tubing. Connect the CLEAR tubing to the base of the RO faucet.Quick Connect Fitting. Simply push Clear tubing into Quick Connect fitting. No Insert,Sleeve or Nut needed here. (Attach threaded end of faucet adapter to the faucet metalstem. No teflon tape needed here)2. Point XFeed water connection:Tubing color:Fitting type:Red tubing. Connect the RED tubing to the Feed Water Needle Valve.Metal compression nut fitting. See Fig.1B on page 4. Use plastic sleeve.Add “insert” to tubing. No teflon tape here. Tighten nut with wrench.Tips!If Point X leaks after you have tightened the brass nut, check to make sure you did put theplastic “insert and sleeve” onto the tubing. If the insert is already in place, then tryapplying Teflon tape from the threaded metal stud all the way to the plastic tubing, wrapthe whole connection with 8-10 rounds of Teflon tape. Smooth out the tape on thethreaded part with your fingers. Tighten brass nut again. This should stop the leak.If the plastic sleeve is damaged, you can use the metal sleeve, but you need to applyTeflon tape as described above, this should stop the leak.14

3. Point WWaste water connection:Tubing color:Fitting type:Black tubing. Connect the BLACK tubing from the RO to the Drain Saddle.Quick-Connect fitting on drain saddle. No teflon tape.Do Not add ”insert” into Black tubing. Simply push tubing into port.4. Point ASystem water inlet (to Stage 1 prefilter) connection:Tubing color:Fitting type:Red tubing. Connect the RED tubing from the Feed Water Valve to the RO’s stage -1prefilter.Quick Connect fitting See Fig.1 on page 4. Simply push the Red tubing into the QuickConnect fitting. No Inserts, Sleeves or Nuts are needed to secure the connection. Noteflon tape needed here.5. Point HStage-5 filtered water to faucet connection:Tubing color:Clear tubing. Connect the CLEAR tubing from the faucet base stud to the Stage-5 filter’soutflow end at point H. (See “Flow -- ” arrow on the filter for flow direction.)Quick Connect fitting See Fig.1 on page 4. Simply push the Clear tubing into outleton the 5th stage filter. No Inserts, Sleeves or Nuts are needed to secure theconnection. No Teflon tape needed here.Fitting type:Please Note:There are two end plugs on the stage 5 filter that has to be removed beforeinserting the tubing. Please refer to Fig. 1A on page 4 for removal instruction.6. Point GStage-5 filter’s T-fitting connection:Tubing color:Fitting type:Yellow tubing. Connect the YELLOW tubing to Stage-5 filter’s T-fitting.Quick Connect fitting See Fig.1. Simply push the Yellow tubing into the 5th stage filter’sT Fitting. No Inserts, Sleeves or Nuts are needed to secure the connection. No Teflon tapeneeded here.(Note: If the unit comes with a UV Light, connect the Yellow tubing to the T- fitting on theUV, as the Stage 5 filter will not have a T-fitting).15

7. Point YTank’s input & output connection:Prepare tank:See Fig.12. Apply 6-8 wraps of Teflon tape to tank’s threaded Output stem on top oftank (remove rubber cap if there is one). Screw tank Valve onto Output stem.Tubing color:Yellow tubing. Connect the YELLOW tubing from Stage-5 T-fitting to the tank’s valve.Fitting type:Quick-Connect fitting on ball valve. Simply push Yellow tubing into valve port.Air pressure:The 4 gallon tank comes pre charged at 5 psi, 14 gallon tank at 7 psi.Standard 4-gallon Tank Diagram:Tank Ball ValveFig. 12OFF PositionON PositionOption: Ice-maker ConnectionIf you want to connect product water from the RO to your ice-maker, you will need: One T-fitting, preferably the quick-connect type fitting Extra ¼ “ tubing long enough to go from the RO system to your ice-maker Optional: One shut-off valve, preferably the quick-connect type.See Fig.13. Before connecting the product water line from Point Z to H, add a T-fitting nearpoint H to divert product water to both the ice-maker and the faucet. It is best open the line tothe ice maker after the first tank has been discarded and the 2nd tank has completely filled.Ball Valve(Recommended)Fig. 13Tee fitting foricemakerRefrigerator16

Using RO for Ice-maker only:If you want the RO to feed your ice-maker (fridge) only, you should still connect the RO faucetas a 2nd outlet. This allows you to drain the tank, flush new filters through the faucet rather thanthrough your icemaker line. You can hang the faucet by the system and not mount it.Option: Multiple Outputs - Add Shut Off Valve:If your RO is feeding several output points (icemaker, fridge, bathroom), you should add aShut-Off valve to each output line (except the RO spigot line). This way, if you ever need todiagnose a problem in the system, you can easily shut off these lines to isolate the water flow foraccurate troubleshooting.Step 7: System Start-Up1. Turn on feed water: Slowly, turn on your Cold water supply. Turn on the Needle Valve (turncounter-clockwise) to allow the raw water to enter the system. Check for leaks!2. Turn on tank valve: Turn on the tank’s ball valve to allow water to enter the tank. Thetank’s valve is “On” when the valve handle is parallel (in the same direction) with the valve’soutlet (see Fig.12). Check for leaks!3. Wait for tank to fill: Before usage, allow the tank to fill. Tank normally takes 2-3 hours tofill. When the tank is filled, the RO will shut off automatically.4. Drain Tank:Do not use the first tank of water! Drain it out to flush the systemand new filters. Lift the faucet lever up into a locked position to draintank. Let the tank refill again and the pure water is ready for use.5. Clean up area: Allow the system to run while cleaning up tools and work area.6. Check for leaks! Make sure no leaking at joints, fittings, valves, and tubing connections.Congratulations! You have successfully installed the Reverse Osmosis System!Note:If your RO makes an annoying noise. See Troubleshoot Guide section for explanation andinstructions on page 29.* * * End Installation Section * * *17

SYSTEM MAINTENANCEThe system requires very little maintenance. Just change the filter cartridges regularly as suggestedbelow. Keep the system indoors away from extreme heat or cold temperatures, and run the systemwithin its reasonable output capacity (i.e. allow the system to rest at least a few hours a day).To properly maintain your APEC drinking water system,please use only genuine APEC Water replacement filters 1, 2, 3 Pre-Filters: Replace every 12 months.(FILTER-SET) (Private well water source: may need to replace pre-filters sooner than12 months due to heavy sediments and other particles.)Stage-4 Membrane:(MEM-90) use MEM-45 for pump modelsCity Water: Replace every 3-5 years depending on inputwater quality, water usage, and prefilter change maintenancePrivate Well Water: Replace every 2-3 years depending onwell water quality, and prefilter change maintenance.Stage-5 Carbon Filter:Replace every 3-5 years: It’s best to replace this filter whenreplacing the stage-4 membrane.Filter Housing O-rings:We recommend that the filter housings O ring be replacedevery 3-5 years.(5-TCR-QC)Important!It is important to change the 3 pre-filters timely, at least every 12 months.The pre-filters protect the stage-4 membrane. If they are not changedtimely and become over-depleted, the membrane will be damaged and theRO system will be contaminated.It’s best to use APEC replacement filters. Using “non APEC” and lesser quality filters may clog up the RO system and damage the membrane.We recommend that the plastic filter housings be replaced periodically: every5 years for the clear housing and opaque housing.FILTER CHANGE INSTRUCTIONSHow To Replace Stages 1, 2, 3 Pre-Filters:1) Turn OFF cold water supply to RO system. Turn OFF tank’s ball-valve. Lift up RO faucet leverbriefly to relief the built-up pressure inside the RO system. This will make opening the housingseasier.18

2) Open housing: Have the RO standing upright. Slip the plastic wrench onto the #1 housing.Looking down from a top view, you should open the housing turning clockwise. If necessary, layRO down on the floor to get a better leverage. If the housing is too tight, use a hammer and tapon the wrench handle to help turn the wrench.3) Discard 3 used filters, wash housings with mild soap, rinse off. Put 3 new filters into theirrespective housings: sediment filter in stage-1, carbon block filters in stages 2 & 3.4) Close up the housings. Make sure each housing has a black O-ring in the thread groves. Usewrench to tighten each housing.5) Remember: Turn ON the cold water supply and OPEN the tank valve after finished changingfilters!6) Check for leaks!After taking the housing off,take out the dirty filters andput the new 3 pre-filters in.Remember, Stage 2 and Stage3 are the same carbon filters.Fig. 14How to Replace Stage-4 Membrane:1) Turn OFF the cold water supply to RO system. Turn OFF tank’s ball-valve. Lift up RO faucetlever briefly to relief the built-up pressure inside the RO system. This will make opening thehousings easier.2) See Fig.14A. Locate the Membrane housing on the system (labeled “Membrane”). Remove theWhite tubing from the housing’s cap at point D. Do so by Pushing In and Holding Down on thecollet ring into the elbow fitting, then pulling out the tubing at the same time. (Do not remove theL-shaped fitting). Open up the cap (turn counter-clockwise). Remove the used membrane.Discard. Insert the new membrane using a pair of pliers. Push membrane into housing tightly.Avoid touching the Membrane with your hands to prevent contamination!3) Important! Make sure the “double-ring” end of the membrane goes into the housing first asshown in Fig.14B below. The membrane cannot filter water if it’s inserted in the WRONGdirection!4) Close the housing cap. Reconnect the White tubing to the cap. Turn on the cold water supplyand open the tank valve. Let the RO system run to re-fill the tank (takes about 2-3 hours).19

5) Check for leaks!6) Drain the first tank of water (through faucet) to flush out the new membrane! The 2nd tankof water is ready for use.Fig. 14AFig. 14BHow to Replace Stage-5 Carbon Filter:Replace this last filter at the same time you replace the stage-4 membrane.1) Remove the OLD filter: See Fig.14 A. Disconnect the output tubing from point H. Remove theT-fitting from filter’s Left hand port. (point J). Discard the used filter.2). The new Stage 5 carbon will come with two end plugs on the stage 5 filter that has to beremoved before inserting the tubing. Please refer to Fig. 1A on page 4 for removal instruction.3) Use some mild bleach solution to rinse the Tee-Fitting and Tubing end. This is to preventcontamination.4) Connect the Tee-Fitting to point J and pure water output tubing to point H. Make sure the“FLOW ” on the filter is pointing to the pure water output direction. Only this filter changeneeds bleach sanitizing. Do Not apply chlorine/ bleach in anyway to Membrane for it willdamage the membrane!5) Check for leaks!* * * End Filter Change Section * * *20


OWNER’S MANUALPlease read this section for useful RO system andmaintenance information.TABLE OF CONTENTPart I:RO BasicsBasic terms .page 23System flow diagram .page 23Water pressure -- The most important factor .page 24TDS meter -- How to test your water quality with meter .page 24Tank -- Fill up time. Fill up volume. Delivery pressure .page 24Icemaker and multiple output points .page 26Insufficient water Pressure -- Problems with non-pump systems .page 26How to test your water pressure .page 27Premature membrane failure .page 27Part II: Trouble-shoot GuideRO Head diagram .page 28Humming noise .page 29Slow output .page 31System shut off abnormal . page 31TDS level higher than normal . page 33Filter housing is leaking . page 34Tank ball valve is leaking .

RO-PUMP system installation, please refer to the included addendum.) BEFORE INSTALLATION: Inspect the system: Please take the system and all the components out of the box. Inspect the system and all the . connection fittings carefully, make sure nothing is damaged during shipping.