A modern, single-chamber, self-priming Viking Power diaphragm pump that can be configured in several different pump/motor arrangements. It is easy to install anywhere downstream of the drain outlet in the sewage system or as a bilge pump on any recreational boat, new or used. Specially designed for pumping sewage with easy, low-cost maintenance and quiet operation. Anti-damper valves: no filters required. Low energy consumption. Multi-position greywater Shower Pump