Aqua Science PURE MAX Owner's Manual - Page 8

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A q u a S c i e n c e A Z . c o m

Solutions For Life

FILTER CHANGES

Replacing the Pre-Filter

The cartridges should be replaced every 6-12 months

If your water contains a high amount of sediment, it may be necessary to

change the sediment cartridge more frequently. If your water contains a high

amount of chlorine, it may be necessary to change the carbon pre-filter (s)

more often.

1. Turn off incoming water supply and the storage tank valve. Place a tray

under the system to catch any water that may spill during the removal of

the filter housings.

2. Open faucet to release any water pressure.

3. Unscrew bottom of filter housings from caps using a filter wrench if

necessary. Discard used filters.

4. Remove black rubber "O"-ring from groove in housing. Wipe grooves and

"O"-ring clean, set "O"-ring aside.

5. Lubricate each "O"-ring with a coating of clean silicone grease. With two

fingers press each "O"-ring securely into the groove below the threads of

the appropriate housing

CAUTION

The rubber "O"-ring provides the water tight seal between the cap and the

bottom sump. It is important that the "O"-ring be properly seated in the

groove below the threads of the housing or a leak may occur.

6. Insert cartridge in the bottom of the housings. Make sure the cartridge slips

over the standpipe in the bottom of the housing.

NOTE: Be sure to install cartridges in the proper housings.

7. Screw bottoms of housings back onto the caps securely, do not over-

tighten. Hand tighten should be sufficient. Turn on clod water supply.

Check for leaks. Continue to check periodically to make sure no leaks

develop.

Replacing the Post-Filter

Post-Filter should be replaced every 12 months.

1. Turn off incoming water supply and valve on the storage tank. Place a tray

under system to catch any water that may drip during the removal of the

post filter.

2. Open faucet to release pressure.

3. Remove filter from bracket and discard.

4. Remove tubes from fittings by pressing in collar around the fitting while

pulling the tube with the other hand. Note: If quick connect fittings need to

be installed, tape fitting with 5 wraps of plumbers tape and attach to filter.

CAUTION

Ensure the tape is not touching the "O"-ring on the fitting or a leak may occur.

NOTE: The filter has an arrow on it showing the direction of the flow. The

tee fitting connects to the inlet side of the filter and the elbow attaches to the

outlet side.

NOTE: Hand tighten fittings, then tighten with a wrench 1/4 turn.

5. Attach post-filter to bracket with the tee fitting on the inlet end.

6. 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.

C A L L F O R S E R V I C E 4 8 0 - 8 9 4 - 0 7 7 0

CAUTION

REPLACING THE REVERSE OSMOSIS MEMBRANE

About the Reverse Osmosis Membrane

When used under the operating conditions specified on page one of this

manual, your reverse osmosis membrane should last at least one to five

years. You should replace the membrane after 18 to 60 months. Replace

it sooner if you notice the return of the unpleasant taste and odors or a

noticeable decline in the production rate. The precise life span of the reverse

osmosis membrane will depend on the quality of the water supply feeding

the system and the frequency with which you use the system. Frequent use

of the system prevents the filtered salt from building up on the membrane

as scale. The more water the system is required to produce, the longer the

membrane will last. You may wish to find a variety of uses for your system to

prolong the life of the membrane.

During periods of non-use (such as during long vacations), remove the

membrane housing and place it in a sealed plastic bag. Store in the

refrigerator until you return.

NOTE: DO NOT FREEZE.

NOTE: If the system stands for two or three days with no use, the storage

tank should be drained.

Replacing the Membrane and Sanitizing the System

NOTE: It is recommended that you sanitize the system each time you change

the membrane. It is not necessary to sanitize the system when changing only

the filters.

NOTE: When installing a new membrane, it is recommended that you replace

the pre-filter and post-filter as well.

Removing the Membrane and Filters

1. Turn off the cold water supply. Allow five minutes for the system to

depressurize. Place a tray under the system to catch any water that may

spill during the removal of the filter housings.

2. Open the drinking water faucet to drain storage tank. When tank is drained,

close faucet.

3. Disconnect the tubing from membrane housing. Hold the membrane with

one hand and re-move the cap with the other hand.

4. To remove the membrane, grasp the center tube of the membrane with

needle nose pliers and pull. Discard the old membrane. Screw cap back

on membrane housing without installing the new membrane. Reinstall the

tubing to housing at this time.

5. Unscrew filter housings from caps and discard old used filters.