(e) Run pumps (36-40, fig. 2-4) for less than 5 second intervals until all water is out.
(f) Shut off pumps.
(6) Drain backwash pump:
(a) Disconnect backwash suction hose at backwash pump.
(b) Open draincock on bottom of backwash pump. Drain pump and backwash strainer.
(c) Close draincock on pump.
When the air temperature is 90°F (32 °C) or above, park in the shade and leave canvas cover
over the ROWPU. Leave control panel uncovered.
The motors will automatically shut off if they overheat.
b. Check raw water and product water more often during hot weather.
Plant life in water will clog multimedia filter and, therefore, reduce time between
filter backwashings during hot weather.
Visually check wire insulation carefully for damage.
DUSTY AND SANDY AREAS
Protect equipment. Leave side covers down except over control panel.
b. Keep ground around ROWPU damp to prevent loose, blowing sand and dirt.
Cover all water storage tanks.
RAINY AND DAMP AREAS
To avoid electrical shorts, keep electrical items dry.
Provide good water drainage.
When preparing for movement after saltwater operations, perform PREPARATION FOR
MOVEMENT procedure (para. 2-33a).