Gulper Toilet Waste Pump, 24 VDC $279.62
... designed to manage unmacerated toilet waste, and is ideal for holding tanks and vacuum systems.
unmacerated toilet waste
Runs dry without damage
Up to 18 ltrs (4.75 US gal ...
Self priming up to 3 m (9.8 ft)-mount the pump
in the most convenient part of boat
a mixture of air and waste
Easy to maintain
Large single diaphragm