Service Water Pump Pressure Tank
Always secure and tag circuit breakers in the OFF position or disconnect equipment's
power cord from receptacle before attempting any electrical repairs, even minor repairs
such as replacing a light bulb. The latrine is a wet environment capable of posing an
electrical shock hazard when personnel have direct contact with energized wires or metal
parts. Failure to observe this safety warning may result in serious injury or death to
Failure to disconnect power from the water heater may result in a burnt out element.
1. Ensure water heater circuit breaker #2B (1) and water pump circuit breaker #9/11 are set to the OFF
2. Unplug (2) water pump.
3. Release pressure from the system by opening the urinal flush valve (3).
4. Remove the cap (4) from the tank Schrader valve (5).
5. If necessary, use a hand pump or compressed air to add air to tank through the Schrader valve (5).
Pressure should be between 12 and 20 psi.
6. If necessary, release excess pressure from tank.
7. Install cap (4) on tank Schrader valve (5).
8. Connect the water pump power cord (2), set the water heater circuit breaker (1) and the water pump
circuit breaker to the ON position, and operate IAW instructions given in WP 0009 00. Monitor for