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Servicing a Raritan Macerator Impeller is fast, easy and clean

by Martin Flory Group 24 Nov 2018 11:37 UTC
Macerator pump © Martin Flory Group

The realization that a macerator pump needs servicing leaves many boat owners sighing with despair. It's a seriously nasty job. Even if a technician does the dirty work, it'll take days to get rid of the odor. With Raritan Engineering's patented 53101 Macerator Pump with Waste Valve, it's fast and easy to disconnect the pump from the holding tank discharge tube, with minimal, if any, spillage.

Raritan's Macerator Pump has few rivals. Available in 12 or 24V DC, it's built for a long, reliable service life. Fully encased in epoxy, its motor has a spring-loaded shaft seal and its unique nitrile rubber impeller is tested and proven to run dry three times longer than the competition. Heavy duty, dual-cut steel chopper blades ensure complete waste maceration.

Eliminating the need for an external ball valve, Raritan's Waste Valve isolates the impeller from the holding tank discharge port. It has a 38mm barbed inlet and 19mm MNPT threaded outlet.

With the optional Smart Macerator Control (SMC), the 53101 Macerator Pump with Waste Valve is almost maintenance-free. It continually monitors the pump motor to protect against priming failure and dry running. With power to the SMC, it will move the impeller periodically to avoid binding. This is especially helpful to boats that aren't used with regularity.

Raritan's Macerator Pump with Waste Valve measures 11" L x 7" W x 5" H and weighs 5 lbs. Powerful, it has a free flow rate of 41 lpm, 24 lpm with a 6m head.

For more information contact Raritan, Tel: +1-856-825-4900; Fax: +1-856-825-4409, email: or visit

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