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Generally an unpleasant topic, Raritan has just received a patent for a new waste macerator pump that promises to take some of the crappiness out of servicing this important on board system.  The following press release came in today describing this  new unit.


Anyone who has disconnected a marine sanitation macerator pump for maintenance or repair knows what a noxious and dangerous mess it can make. Raritan Engineering’s 53101 Macerator Pump with Waste Valve eliminates this scenario, making servicing clean, quick and easy. In acknowledgement of its technical innovation, the product was awarded US patent 9,617,993.

The 53101 model starts with Raritan’s renowned macerator pump. It features a special nitrile rubber impeller that will run dry three times longer than the competition. Its spring-loaded, Viton motor shaft seal reduces leakage. Stainless steel fasteners and a heavy duty chopper ensure a long service life. Adaptable, it’s available in 12 or 24V DC, and will discharge left, right or from the top.

The Waste Valve isolates the impeller housing from the holding tank discharge port. To service the pump, it’s simply a matter of turning the waste valve lever to the closed position and separating the quick disconnect assembly—no more hose clamps and brittle, leak-prone rubber couplings. A video is at

“Our customers appreciate the reliability our products provide, but few understand what it takes to get to that point,” said Vinod Mehta, Raritan VP of manufacturing and engineering. “This patent validates the pioneering work we’re continually doing to advance marine sanitation.”

Raritan Engineering’s 5310112 Macerator Pump with Waste Valve for 12V has a list price of $290.

Since 1958, generations of boat owners have relied on Raritan Engineering’s innovative and dependable products. It manufactures a wide range of marine toilets, waste treatment systems, icemakers and water heaters.

Contact Raritan, 530 Orange St., Millville, NJ 08332.  856-825-4900;

Fax: 856-825-4409.;

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