A sewage ejector pump moves waste material from areas that are below the septic tank or sewer line. The pump pushes the matter upward to the line so the waste does not just sit there. Maintaining and cleaning the pump are basically the same thing. Debris that is stuck in the float will ultimately affect the pump, and the waste will back up. You can clean the pump as part of its routine maintenance or deal with it when a problem arises.
Turn off the circuit breaker to the pump before you attempt to clean it out.
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Open the access panel on the holding tank. Remove any debris that may be clogging the pump and preventing the flow, such as diapers or paper towels.
Measure the oil level in the pump motor. The method will depend on the model of pump installed. Some will have a gauge or a level so that you can see how much oil remains. Review the documentation for your pump to determine how to measure and add oil to the motor.
Pull any debris from the outside of the pump that may be clogging it. Examine the inlet valve and any open areas on the pump for bulky material.
If you do not have the documentation for your pump, have a plumber do maintenance on it while you watch. Ask questions so you can do the routine checks yourself next time.
Keep a trash can near the toilet to encourage people to throw away items that should not be flushed, such as tampons and sanitary napkins.
If the pump is not running or you have frequent backups, the motor may be bad. This will require professional service.