Page 12
Annual Maintenance
Step 1
√
Stage 1 - Sediment Filter
√
Stage 2 & 3 - Carbon Block Filter -
Stage 3 Only on the GTS550S
√
Stage 5 - 10” Final Polishing filter
√
1/2 Cup of hydrogen peroxide or common household bleach.
Note:
Sanitizing of unit is recommended.
Perform steps 1 through 5 in the Six Month System Maintenance (Page 11).
Note:
If not sanitizing the system skip to step 8.
Step 3
Step 4
Step 5
Step 6
Remove the RO membrane from its housing and rest in a clean sanitary place. (Refer to
“Membrane Replacement” section on page 15 for directions on removing the membrane).
Replace cap onto empty membrane housing and re-connect green tubing.
Step 2
Leaving the filters out, replace stage 2 and 3 empty filter housings (hand tight) onto unit.
Measure & pour either 1/2 cup of hydrogen peroxide or common household bleach into the
1st filter housing (Stage 1) and hand tighten onto unit.
With the RO faucet in the closed position turn on the incoming water supply to the system by
turning the adapt-a-valve counter clockwise. Wait 1 minute for the unit to pressurize. Turn
on the RO faucet and let the water run for 30 seconds. Turn off the RO faucet and let the unit
rest for 2 minutes. Finally, open the RO faucet and let the water run for 5 more minutes.
Turn off the incoming water supply to the system by turning the adapt-a-valve clockwise
until it stops. Keep the RO faucet open until the storage tank is completely drained.
Open the membrane housing and re-install the RO membrane while making sure not to kink
the O-rings. (Refer to “Membrane Replacement” section on page 13 for directions on
installing the membrane). Tighten the cap back on the housing and reconnect green tubing.
Step 7
Remove filter housings Stage 1, 2 and 3 and empty of water.
Before re-installing the filter bowls back on to the system , check O-rings to make sure
they are still in place and lubricate with water soluble lubricant.
Caution:
Insert the new sediment filter (cloth like appearance) into the 1
st
filter housing which is the one
on the water inlet side (green tubing from the adapt-a-valve) of the RO system and
re-install housing.
Step 8
Insert the new Carbon Block filter (White End Caps) into the 2nd and 3rd housing and
re-install housing.
Step 9
Step 11
Follow Steps 8 through 10 in the Six Month System Maintenance (Page 11) for startup
directions.
Tip:
This is a good time to check the air pressure in your storage tank. For instructions
please see page 14.
Step 10
The final in-line filter is located on the blue tube between the storage tank and the RO faucet.
Remove it by loosening the compression fittings on both ends of the filter and replace with
new filter. (Discard used final filter after sanitizing)
Note:
The arrow on the final filter must be pointing towards the RO faucet / away from the
RO storage tank.
