Replace Sump Pump
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
Protective clothing and equipment must be worn. Heavy-duty rubber apron, rubber
gloves, safety splash goggles and/or face shield are required when potential exists for
contact with wastewater or contaminated surfaces. Wastewater and surfaces may be
contaminated with pathogenic microorganisms, bacteria or viruses, which present a risk
of serious illness or death to personnel.
The sump pump is only necessary to pump No. 1 holding tank prior to service or
movement. No. 1 holding tank will overflow into No. 2 holding tank with or without an
operable pump. Do not proceed with this maintenance task unless all replacement parts
are available and the CL/CLS can be shut down without undue inconvenience to the unit.
The tank must be pumped to allow easier access to the sump pump. If the tank is full,
use an extension cord from the interior GFCI convenience outlet to the replacement
sump pump, and connect it using the factory installed sump pump plug.
1. Remove the screws retaining the junction box cover (1), and remove the junction box cover.
2. Disconnect the sump pump twistlock plug (2) from the sump pump receptacle.
3. Disconnect the ECU (3) from the ECU receptacle (4).
4. Disconnect the water supply pump (5) from the water supply pump outlet (6) (CLS only).
5. Use a putty knife to free the wire raceway cover (7), and place the cover out of the way.
6. Remove the screws retaining the sump pump cover (8), and remove the cover with gasket.
7. Loosen pump discharge hose clamp (9).
8. Loosen wire conduit strain relief/seal (10).