Diaphragm bilge pump

A diaphragm bilge pump is a type of pump designed for use in boats to evacuate water seeping into the bilge. It works by using a diaphragm that repeatedly contracts and expands to draw in and discharge water. This is a type of fixed submersible pump. Certain models of diaphragm bilge pump can also be used to evacuate waste water or shower water, and are unaffected by hair, residues, products or soap. They can also be used in motorhomes, to drain tanks, etc...