How to Replace Filters in a Water Saver 75 High Efficiency Reverse Osmosis Drinking Water System

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The Water Saver 75 High Efficiency Reverse Osmosis Drinking Water System is super easy to maintain and with a little guidance you can change the filters and membrane yourself. 

 

How to Replace Filters in a Water Saver 75

To replace the three Pre-Filter Cartridges:

These cartridges should be replaced every 6-12 months. If your water contains a high amount of sediment, it may be necessary to change the 1st stage cartridge more frequently. If your water contains a high amount of chlorine, it may be necessary to change the 2nd stage pre-filter more often.

 

  1. Turn off incoming water supply and valve on the storage tank. Place a tray under the system to catch any water that spills during removal of the filter housings.
  2. Open faucet to release pressure.
  3. Unscrew bottom of filter housings from caps. Use the filter wrench. Discard used cartridges. I like to do this one at a time to minimize the chance of mixing up the filters.
  4. Remove black rubber O-rings from grooves in housings. Wipe grooves and O-rings clean; set O-rings aside.
  5. Rinse out housings and fill each 1/3 with water. Add 2 tablespoons of bleach and scrub with non-abrasive brush or sponge. Rinse thoroughly.
  6. Lubricate each O-ring with a coating of clean silicone grease. With two fingers, press each O-ring securely into groove below the threads of the appropriate housing. CAUTION: The rubber O-ring provides the water-tight seal between the cap and the bottom of the housing. It is important that the O-ring be properly seated in the groove below the threads of the housing or a water leak could occur.
  7. Insert cartridges in the bottom of the housings. Make sure cartridge slips over standpipe in the bottom of the housing.
  8. Screw bottoms of housings back onto caps securely; do not over-tighten.

 

4th Stage Post-Filter Cartridge:

post-filter should be replaced every twelve months.

 

  1. Remove filter from bracket and remove tubes from fittings by pressing in collar around the fitting while pulling the tubing out with your other hand.
  2. Check out this video about using quick connect fittings https://www.youtube.com/watch?v=wh-dwEGORYw
  3. NOTE: If quick connect fittings need to be installed, tape threads of fittings with 3 wraps of plumber tape and attach to filter. NOTE: The filter has an arrow on it showing the direction of flow. The tee fitting connects to the inlet side of the filter and the elbow fitting attaches to the outlet side. NOTE: Hand tighten fittings, then tighten with wrench 1/4 turn.
  4. Attach 4th stage filter to bracket with the tee fitting on the right hand side.
  5. Attach tubes to fittings by pushing in until the tube stops. Check to see if tube is in place by trying to gently pull tube out

Turn on cold water supply. Check for leaks. Continue to check periodically to make sure no leaks develop.

Hey if you enjoyed this video, I just recently made another video about how efficient the Water Saver 75 is and you need to watch that right now here https://youtu.be/S17l3Tt6xS4

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  • Gary Beutler