Pump Details: The Modern Macerator


Most of the macerators that PS looked at for this test used a variation of the centrifugal pump/macerator design introduced by Tecma in the 1990s.

1. Spinning vanes on the Thetford-Tecma Silence’s convex macerator impeller sling emulsified liquid to the outside of the pump body.

2. Heavier material is broken down as it is forced past metal blades in a center of the macerator body of the Thetford-Tecma Silence.

3. The bronze macerator on the Raritan Atlantes was the most robust in our test group.

4. The closely spaced stainless-steel blades on the Dometic macerator do an excellent job of cutting up waste so that it can be passed into the holding tank.

Darrell Nicholson, editor of Practical Sailor, grew up boating on Miami’s Biscayne Bay on everything from prams to Morgan ketches. Two years out of Emory University, after a brief stint as a sportswriter, he set out from Miami aboard a 60-year-old wooden William Atkin ketch named Tosca. For 10 years, he and writer-photographer Theresa Gibbons explored the Caribbean, crossed the Pacific, and cruised Southeast Asia aboard Tosca, working along the way as journalists and documenting their adventures for various travel and sailing publications, including Cruising World, Sail, Sailing, Cruising Helmsman, and Sailing World. Upon his return to land life, Darrell became the associate editor, then senior editor at Cruising World magazine, where he worked for five years. Before taking on the editor’s position at Practical Sailor, Darrell was the editor of Offshore magazine, a boating-lifestyle magazine serving the New England area. Darrell has won multiple awards from Boating Writer’s International, including the Monk Farnham award for editorial excellence. He holds a U.S. Coast Guard 100-ton Master license and has worked as a harbor pilot and skippered a variety of commercial charter boats.


Please enter your comment!
Please enter your name here