Use and Care Manual

15 | P a g e
Filter Replacement
The filter elements must be replaced at regular intervals to
maintain the quality of the water.
The G4CTF have two stages of mechanical filtration. The first stage is
the 5-micron sediment filter. The second stage is the activated carbon
filter. The filter elements in all stages must be replaced every six
months.
The G4CTRO models have the two stages of filtration plus an
additional Reverse Osmosis membrane filter. The three pre-filters must
be replaced every six months. The Reverse Osmosis membrane must be
replaced every three years.
Replacement Procedures, Filtration Versions (F)
a) TURN OFF POWER TO HOT/COLD ELEMENTS.
b) Open side panel over.
c) Close the ball valve to stop water flow through the filters.
d) Place a towel under the filters to catch water. The filters will have
water in them which will run out when the filters are unlocked.
e) Twist the filters to remove them from their housings.
f) These filters are disposable, encapsulated filters. Remove and
discard the entire filter body. Replacement filters are sold as a set:
1st Stage sediment filter
2nd Stage carbon filter P/N ETSET
f) Twist new filters on the housing brackets.
g) Open ball valve and let water flow through filters. When the
cooler is full, empty out the water into a bucket. This will
eliminate the first batch of water, which is full of carbon fines.
h) After the cooler fills up again, turn on the power to the cold and
hot tanks. Wait a few minutes to assure there are no leaks and
slide the panel back on.