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If your macerator is still humming or failing to pump after these steps, the motor or the capacitor may have failed. In these cases, it is best to call a qualified plumber or a Saniflo specialist to avoid permanent damage to your plumbing system. To help you get this fixed, tell me: What is the unit? Is it making a humming sound or is it silent ?
To avoid a blocked macerator in the future: macerator blocked
NO wipes. NO cotton. NO fat.