C400 Macerator

[Al Simon]

I am having poblem with macerator. Pump works but does not empty holding tank. Any suggestions as to how or what to check.

[Peggie Hall/Head Mistress]

First, make sure your holding tank vent isn't blocked...that the pump isn't pulling a vacuum. If the vent is open, odds are the impeller in the macerator has failed. Impeller failure is fairly common, so it's a good idea to carry spares.