Holmes Ecowater
Phone 403-327-7867 / Toll Free 877-327-9007
925 – 2 A Ave. N.
Lethbridge, AB
mailto:[email protected]
REPLACING PREFILTER AND POSTFILTER CARTRIDGES
When replacing cartridges, you can keep the RO assembly wall mounted, or simply lift from the mounting
screws and lay in a leak-proof container on the cabinet floor.
1. CAUTION:
Before removing cartridges, be sure to close the
water supply valve
to the RO, and the
shutoff
valve
on the storage tank. Then, open the RO faucet until
pressure is relieved
and water flow stops.
2. Turn (1/4 turn to the left) and pull downward either or both cartridges from the RO head assembly.
3. Remove new cartridge(s) from the sanitary bag. Be sure O-ring seals on top of cartridge are lubricated. Use
silicone grease approved for use on potable water supplies.
4. Insert the top end of either or both cartridges into the applicable head, push upward and rotate 1/4 turn to
the right to lock in place.
Be sure to locate the prefilter to the right and the postfilter to the left, as shown.
5. Turn on the water supply and check for leaks.
REPLACING RO MEMBRANE CARTRIDGE
1. CAUTION:
Before removing the cartridge, be sure to close the
water supply valve
to the RO, and the
shutoff
valve
on the storage tank. Then, open the RO faucet until
pressure is relieved
and water flow stops.
2. Be sure there is some slack in the red flow control drain tubing, shown in the figure, above. Then, turn (1/4
turn to the left) the cartridge and pull downward.
3. Depress the elbow fitting collet with a finger while carefully pulling the red tubing out.
4. Remove the new RO cartridge from the sanitary bag. Rinse the cartridge in fresh tap water and dry. Depress
the elbow fitting collet and remove the plug.
5. Remove the protective cap (not shown) from the top end of the cartridge. Be sure the o-ring seals are
lubricated. Use silicone grease approved for use on potable water supplies.
6. Inspect the end of the red flow control tubing for nicks, scratches or other rough spot. If needed, use a sharp
knife and carefully cut 1/4" from the end of the tubing. Check to be sure the center hole is unobstructed.
7. Insert the end of the tubing into the elbow fitting on the new RO cartridge. Gently pull on the tubing to be
sure it is secure.
8. Insert the top end of the cartridges into the head, push upward and rotate 1/4 turn to the right to lock in
place.
Be sure to locate the RO cartridge in the center, as shown.
9. Turn on the water supply and check for leaks at the top, and at the red tubing connection.
10. Purge the cartridge. The RO Cartridge contains a food grade preservative that you should clean from it
before using water from the system. The preservative will give the product water an unpleasant taste and odor.
After the storage tank has filled (takes about 4 hours). Open the RO faucet until the tnak is empty and flow
stops. Close the RO faucet and allow the tank to fill again for 4 hours. Then, open the RO faucet and empty
again. After purging 4 times, the system is ready to make product water for use.
