Shop our selection of RV Macerator Systems and make sure the holding tanks in your motorhome or trailer are empty and clean. RV Macerator pump grind waste down so that it can easily be pumped through a hose and the holding tank can be emptied. Desogned specificaly for sanitation waste evacuations. These high-powered pumps incorporates a high quality motor with a seamless shell and splash proof design. Perfect for most RV gray or black water pumping applications.