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PREVENTIVE MAINTENANCE 

These recommendations are intended for maximize efficiency of RO water production by your system. 

1)  

Filter maintenance 

 

a) It is OK to store filters shrink wrapped on the shelf for several years. 

 

b) To store the sealed, unopened filter, we recommend that it be kept in an air tight container. This  

 

 

     prolongs the shelf life of the carbon filter and avoids having the filter absorb any possible odor from 

 

     the air.

2) 

 Membrane maintenance 

 

a) The dry packed membrane usually has a two-year shelf life. To prolong the shelf life, we recommend   

      

     keeping unopened dry membrane in a refrigerator. 

 

b) Once the membrane is in use, we recommend running the RO system every day for at least 10-15  

 

 

     minutes (about 1 gallon or 4 liters of drinking water). This helps to maintain the membrane 

 

     performance. 

 

c) If the RO system is not used for over a week, drain the storage tank first. Then fill the tank and drain it  

 

     twice. Your RO system is now ready to use again. 

 

d) This reverse osmosis system contains a replaceable component critical to the efficiency of the system.  

 

    Replacement of the reverse osmosis component should be with one of identical

 

    specifications, as defined by the manufacturer, to ensure the same efficiency and contaminant 

 

    reduction performance.

3)

 Filter and membrane change procedures: 

 

a) Shut off the water supply. 

 

b) Turn off the tank ball valve by turning it 90 degrees. 

 

c) Open RO faucet to the continuous flow position to relieve pressure. 

 

d) Slide in the housing wrench. Use one hand to hold the system and the other hand to turn the wrench    

 

    clockwise to open the housing. 

 

e) After opening the housing, remove the used filter and put the new filter into the housing. 

 

    Make sure the o-ring is back in place and turn the housing counter-clockwise to close. 

 

f) Repeat previous step to change second filter. 

 

g) Turn on the water supply and make sure there are no leaks. 

 

h) Let the water drip from the faucet for about 10 minutes. If the water flow is less than 1 cup 

 

    (8 oz. or 240 ml) per minute, it may be a signal to change the membrane. 

 

i) Membrane change procedures:  

• 

Unscrew the membrane housing cap. 

• 

Slide out the used membrane and discard. 

• 

Insert the new membrane into the housing. The end with the two o-rings should go in first; to prevent    

 

leaks be sure it is fully seated in the bottom of the housing. 

• 

Screw the cap back onto the membrane housing, making sure o-ring is still in place. 

• 

It may take 10-20 minutes for the new membrane to run at normal flow. 

If the water flow is OK, then turn on the tank ball valve. After 1 minute, turn off the RO faucet and complete the 

filter change procedures. 

15

Note: If it is too tight to open the housing you may try unplugging the fitting between red 

tubing and the system in order to reduce the air and water pressure inside the housing.

Summary of Contents for 315

Page 1: ...rence WARNING Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system If you are unsure about installing your WATTS water filter contact a WATTS representative or consult a professional plumber Test the water periodically to verify that the system is performing satisfactorily Discard small parts remaining after the insta...

Page 2: ...ve drain saddle clamp 1 4 3 8 feed water valve faucet assembly 4 Manual Variable speed drill 1 8 and 1 4 drill bits 7 16 drill bit 1 2 and 9 16 open end wrenches or adjustable Phillips screwdriver Utility knife RECOMMENDED TOOLS LIST This reverse osmosis system contains a replaceable component critical to the efficiency of the system Replacement of the reverse osmosis component should be with one ...

Page 3: ...er 5 micron 10 Auto shut off valve Operating pressure 40 100 PSI Operating temperature 40 100 F Please contact your local dealer at REPLACEMENT PARTS WATTS ITEM DESCRIPTIONS SERVICE LIFE F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 TFC membrane 50GPD 60PSI 24 36 months F109009 Carbon block filter 5 micron 10 6 12 months 3 ...

Page 4: ...Operating pressure 40 100 PSI Operating temperature 40 100 F Please contact your local dealer at REPLACEMENT PARTS WATTS ITEM DESCRIPTIONS SERVICE LIFE IF SP 1005 Sediment filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 TFC membrane 50GPD 60 PSI 24 36 months W560033 Inline carbon filter 12 18 months 4th stage Inline carbon filter 4 ...

Page 5: ...temperature 40 100 F Please contact your local dealer at REPLACEMENT PARTS WATTS ITEM DESCRIPTIONS SERVICE LIFE IF SP 1005 Sediment filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 TFC membrane 50GPD 60PSI 24 36 months W560033 Inline carbon filter 12 18 months 4th stage TFC membrane 50GPD 60 PSI 5th sta...

Page 6: ...temperature 40 100 F Please contact your local dealer at REPLACEMENT PARTS WATTS ITEM DESCRIPTIONS SERVICE LIFE IF SP 1005 Sediment filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 TFC membrane 50GPD 60PSI 24 36 months W560033 Inline carbon filter 12 18 months 4th stage TFC membrane 50GPD 60 PSI 5th sta...

Page 7: ...ollet gripper has stainless steel teeth which hold the tube firmly in position while the o ring provides a permanent leak proof seal 4 PULL TO CHECK SECURE Pull on the tube to check that it is secure It is a good practice to test the system prior to leaving site and or before use Disconnecting PUSH COLLET AND REMOVE TUBE To disconnect ensure the system is depressurized before removing the tube Pus...

Page 8: ...uid soap to keep the hole saw cool during cutting 2 Drill a pilot hole Use a 1 2 Hole Punch and an adjustable wrench to punch the hole in the sink Change to the 1 Hole Punch to enlarge the hole 5 The faucet can now be installed If mounting faucet to a Stainless Steel Sink you will need a 1 2 1 Hole Punch The faucet opening should be centered between the back splash and the edge of the sink ideally...

Page 9: ...ter is a 3 8 quick connect elbow fitting Attach the open end of the 3 8 blue tubing from the RO faucet to the 3 8 quick connect elbow on the polishing filter With Non Air Gap faucets this will be the only tube connected to the RO faucet Air Gap Faucet Follow the drinking feed tube connection instruc tions above Connect the 1 4 drain tube from the RO module up to the 1 4 fitting on the RO faucet Th...

Page 10: ...e pieces of the drain saddle Caution Do not over tighten the screws It may crack the drain saddle If you have a garbage disposal do not install the drain saddle near it Installation of the drain saddle must be either above the garbage disposal or if a second sink drain is available install it above the cross bar on the second drain Installation of the drain saddle near a garbage disposal may cause...

Page 11: ...ll valve off TOPVIEW OFTANK BALLVALVE PPSV501222W OFF POSITION ON POSITION Fig 5 STEP 4 MOUNTING THE DRAIN CLAMP The drain clamp SC500B14 38 will fit most standard drain pipe 1 4 It should be installed above the trap and on the vertical tailpiece See Fig 6 1 Position the drain saddle in desired location mark spot through thread outlet remove saddle 2 Drill 1 4 6 3mm hole into the drain pipe above ...

Page 12: ...tart up and periodic maintenance Your RO tank must be allowed to fill up fully in order for the ice maker system to work properly After the Tank has filled open the RO Faucet to flush the tank completely You will know that the tank is empty when the flow rate from the RO faucet is down to a trickle Repeat this step two more times The fourth tank can be used for drinking This flushing process shoul...

Page 13: ...of unscented 5 25 sodium hypochlorite liquid household bleach into each of the clean housings and replace housings on the RO system 8 Disconnect RO storage tank from the system 9 RO storage tank cleaning procedure Tank sanitizer feeder or small filter housing with fittings and tubing Disinfectant solution Pressure gauge and air pump a The tank should be empty Check the air pre charge pressure with...

Page 14: ...er at the source water supply with RO faucet open 13 When the flow of water has stopped at the RO faucet remove the filter housing sumps and membrane housing from the RO system Replace the filters and membrane according to the service life 14 Replace the housings on the RO system Open the source water valve and allow the water to flow from the faucet Because some of the disinfectant may still be i...

Page 15: ...rocedures a Shut off the water supply b Turn off the tank ball valve by turning it 90 degrees c Open RO faucet to the continuous flow position to relieve pressure d Slide in the housing wrench Use one hand to hold the system and the other hand to turn the wrench clockwise to open the housing e After opening the housing remove the used filter and put the new filter into the housing Make sure the o ...

Page 16: ...nic Facts section of the Performance Data Sheet for further information Avg In Avg Eff Reduction pH Pressure Max Eff Inf challenge Max Allowable mg L mg L mg L concentration concentration mg L mg L Arsenic Pentavalent 0 3 0 001 99 6 50psi 0 004 0 30 10 0 010 mg L Barium Reduction 10 0 12 98 8 7 24 50psi 0 23 10 0 10 2 0 Cadmium Reduction 0 03 0 0003 98 8 7 49 50psi 0 0008 0 03 10 0005 Chromium Hex...

Page 17: ...IFE IF SP 1005 Sediment filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 TFC membrane 50GPD 60 PSI 24 36 months W560033 Inline carbon filter 12 18 months WATTS ITEM DESCRIPTIONS SERVICE LIFE IF SP 1005 Sediment filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months F109009 Carbon block filter 5 micron 10 6 12 months W 1812 50 ...

Page 18: ...als such as ozone and potassium permanganate will also change trivalent arsenic to pentavalent arsenic A combined chlorine residual also called chloramine where it does convert trivalent arsenic to pentavalent arsenic may not convert all the trivalent arsenic in to pentavalent arsenic If you get your water from a public water utility contact the utility to find out if free chlorine or combined chl...

Page 19: ... in storage tank is low Normally it takes 2 3 hours to fill tank Low water pressure and or temperatures can reduce production rate Add pressure to storage tank The pressure should be 8 10 psi when the tank is empty Slow production Low water pressure Crimps in tubing Clogged pre filters Fouled membrane Add a booster pump Make sure tubing is straight Replace pre filters Replace membrane Water taste ...

Page 20: ...ppm 4 The pH of the water must not be lower than 2 or higher than 11 5 The incoming water pressure must be between 40 and 100 pounds per square inch 6 Incoming water to the RO cannot exceed 105 degrees F 40 degrees C 7 Incoming TDS Total Dissolved Solids not to exceed 1000 ppm 8 Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or aft...

Page 21: ...tion please visit www watts com or the published literature that comes with your product Any remedies stated in such warranties are exclusive and are the only remedies for breach of warranty EXCEPT FOR THE APPLICABLE PRODUCT WARRANTY IF ANY WATTS MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW WATTS HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES E...

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