7
IV. Maintenance
(continued)
3. Turn the pre-filter housing,
(the one closest to the tubing
receptacles labeled with a
number “1” embossed onto
the manifold), 1/4 to 1/2 turn
counter-clockwise—this will
allow water in the pre-filter
to drain through the inlet
opening (see figure 20). You
can tip the AQUA
3
II slightly
to further encourage drainage.
Remember to hold the
AQUA
3
II firmly by the base
when repositioning or moving
the unit. (If necessary, use the
housing wrench to loosen the
housing.)
4. When the water has stopped
draining completely, remove
the pre-filter housing by turning
it counter-clockwise. Lift the
pre-filter housing straight up off
of the pre-filter ceramic candle,
and set it aside. Be careful not
to knock the pre-filter housing
against the pre-filter ceramic
candle—the impact may cause
the pre-filter ceramic candle to
crack or break.
5. Using thin waterproof gloves,
grip the pre-filter ceramic
candle firmly in the middle and
gently remove by twisting and
lifting straight up (see figure
21).
fig. 0
fig.