Annual Maintenance - PUR PUN3RO Manuel Du Propriétaire

Annual Maintenance:

NOTE: Sanitizing of unit is recommended.
1. Perform steps 1 through 5 in the Periodic System Maintenance.
NOTE: If not sanitizing the system skip to steps 2 - 6.
2. Remove the RO Membrane from the housing and place it in a clean sanitary place. (Refer to Membrane Replacement section
for directions on removing the Membrane). Replace cap onto empty Membrane housing and re-connect tubing.
3. Remove filters from the two vertical filter housings. Measure and pour either ½ cup of hydrogen peroxide or 2 table spoons of
common household bleach into the 1st filter housing and re-attach the 2 empty filter housings onto unit using the supplied
wrench.
4. With the RO Faucet in the closed position turn on the incoming water supply to the system by turning the inlet 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.
5. Turn off the incoming water supply to the system by turning the inlet valve clockwise until it stops. Keep the RO Faucet open
until the storage tank is completely drained.
6. Open the Membrane housing and re-install the RO Membrane while making sure not to kink the O-rings. (Refer to Membrane
Replacement Section).
For Model PUN3RO:
1. Remove filter housings at stages 1 and 3 and empty the water.
2. Insert a new Carbon Block filter (white end cap and plastic netting) into the 1st filter housing which is the one on the water
inlet side of the RO system and re-install housing to the head. Tighten with the supplied wrench.
3. Insert a new Carbon Block filter (white end cap and plastic netting) into 2nd filter housing and re-install housing to the head.
Tighten with the supplied wrench.
Continue to Step 7.
For Model PUN4RO:
1. Remove the filter housings at stages 1 and 2 and empty the water.
2. Insert a new Sediment filter (cloth like appearance) into the 1st filter housing which is the one on the water inlet side (red tub-
ing) of the RO system and re-install housing to the head. Tighten with the supplied wrench.
3. Insert a new Carbon Block filter (white end cap and plastic netting) into 2nd filter housing and re-install housings to the head.
Tighten with the supplied wrench.
4. The carbon in-line filter is located between the RO faucet and storage tank. It is attached to the RO Membrane with brackets.
Remove it by loosening the fitting on both ends of the post filter and replace with new filter. (Refer to the Inline Post Carbon
Filter Replacement Section)
Continue to Step 7.
7. Perform steps 6 through 9 in the Periodic System Maintenance section for start-up directions.
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