Installation and Service Manual – Under-the-Counter Point of Use 5 Stage Reverse Osmosis System with Booster Pump
Copyright © 2014 Applied Membranes, Inc.
All Rights Reserved.
Page 13
System Maintenance
CAUTION
Unplug the pump before performing any maintenance to the system.
Membrane Replacement Instructions
The membrane should be replaced every 1-2 years, depending on the water quality.
Before starting, shut off the cold water supply to the unit. Lift the handle on the faucet to drain out the storage tank
completely and allow the system to stand for 10 minutes in order to fully decompress the tank. Leave the faucet open
until the membrane change is complete.
1.
Unscrew the fitting to the cap of the membrane housing.
2.
Using pliers, pull out the old membrane from the housing.
3.
Remove the new membrane from its bag.
4.
Insert the membrane in the housing in the same direction as the old membrane.
5.
Push the membrane firmly into the housing until it seats on the far end.
6.
Screw the housing cap back on, making sure the o-ring is positioned correctly.
7.
Screw the fitting (with tubing) back onto the housing.
8.
The system is ready. Turn on the water supply. Check for any leaks.
9.
Drain the first two tanks of water before drinking.
Filter Replacement Instructions
All pre-and post filters should be replaced every 6 months.
Before starting, shut off cold water supply to unit. Lift the handle on the faucet to drain out the storage tank completely
and allow the system to stand for 10 minutes in order to fully decompress the tank, reserving some of the RO water to use
to rinse the filter housings. Leave the faucet open until the filter change is complete.
1.
Remove pre-filters from filter housings. Use a filter wrench if the housings are too tight.
2.
Discard used filters, but save o-rings for re-use.
3.
Clean inside of all housings with a mild soap solution, and then rinse with RO water.
4.
Lubricate the o-ring and replace in filter housing.
5.
Insert the new filters into the appropriate housings and replace the housings onto the system.
6.
Disconnect the post-filter by removing the fittings on either end. Replace with new post-filter and re-use the existing
fittings.
(Feed end tee is connected by a short length of tubing, remove this and use to connect to new filter.)
7.
Follow the normal Start-up Procedures. (Drain the first tank of water after changing the filters before drinking.)
Sanitizing
We recommend sanitizing the system at least once a year. This can be done while changing your filters. Shut down the
system. If you have an icemaker hook-up installed, be sure the ball valve in the line to the refrigerator is in the closed
position during this procedure. Open the faucet to drain the system, including the tank. Remove the pre-filter cartridges
and RO Membrane from the system, leaving the old post-filter cartridge in place. Wash the internal filter housing &
membrane housing areas with warm soapy water and rinse well to remove the soap. Pour about ¼ teaspoon of Hydrogen
Peroxide or household bleach into each filter housing and replace housings on the RO system. Open the feed water valve
and open the RO faucet until water flows freely from the spout. Close the faucet and hold the solution in the system for a
minimum of 10 minutes.
Drain the tank completely, close the faucet to allow tank to fill again, and then drain again. Replace filters and membrane
as indicated in the replacement instructions. The post filter should be changed after sanitizing the system.
