Rule 500GPH Electronic Sensing Bilge Pump - 12V Deck Fills Resolution: 640x480

Resolution: 640x480

Dress Cap Material: 316 Stainless Steel

Bent butt rods

Heavy-duty floats won’t crush or break off

Compared to other electric systems using old technologies designed over twenty years ago

Rule 500GPH Electronic Sensing Bilge Pump - 12V Deck Fills Resolution: 640x480500GPH Electronic Sensing Bilge Pump 12V In the next generation sensing bilge pumps, the 500GPH S series pump works on the principle of impeller resistance. The pump will turn on every 2 1 2 minutes for about one second to sense for water. If water is present, the pump will sense resistance and continue to run until all water is removed. After that, it will resume checking for water every 2 1 2 minutes. Water is kept in check between 1 8" and 3 8"!!!