TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
e Drain R.O. pump as described below:
CAUTION
To prevent damage to R.O. pump, do not operate R.O. PUMP JOG switch (43, figure 2-4) more
than 5 seconds at a time.
NOTE
The JOG switch can be used when the R.O. Pump LOW PRESSURE lamp is on.
(1) After water stops flowing out of drains, push R.O. PUMP JOG (43, figure 2-4) to JOG. Hold it there for 3
to 5 seconds to force water from pump.
(2) Repeat operation of R.O. pump with JOG switch until no more water comes from the DRAIN PULSE
DAMPENER drain (figure 2-38). After jogging the R.O. pump, some dripping from the drain is allowable.
(3) Open front and rear sample valves all of the way to allow R.O. vessels to drain. Close when fully drained.
(4) Tag and disconnect the eight (8) control lines on the multimedia filter control valve (figure 2-14) and
backwash timer pilot valve, and allow lines to drain. After draining the lines reconnect them to the valves as tagged.
f. Drain booster pump:
(1) Run BOOSTER PUMP (figure 2-55) for no more than 5 seconds.
(2) Set switch to STOP.
(3) Repeat the last two steps until no more water comes from cartridge filter drains (figure 2-9).
g Drain chemical feed pumps as described below:
WARNING
Chemicals used for operating ROWPU can kill you. The chemicals alone or in mixture can be
dangerous. Always wear protective clothing and make sure area is well ventilated.
(1) Empty and rinse all chemical utility containers and fill them with brine water.
(2) Set chemical pump valves to PRIME (figure 2-63).
(3) Run pump motor (38, figure 2-4) to rinse chemical pumps. Ensure all control knobs (figure 2-7) are set to
their maximum settings.
(4) Disconnect intake hoses from all chemical containers.
(5) Allow pump to run for 5 to 10 seconds to empty water from chemical pumps.
(6) Stop pump motor and empty chemical containers.
(7) Set chemical valves to PRIME position.
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