Rule AUTO 500 12v BILGE PUMP RWB807 bds Manufactured from durable PVC coated

Manufactured from durable PVC coated waterproof fabric with heat-welded seams for extra strength

Professional-strength concentrate reduces cost

RF150 shackle

Automatic or Manual CO2 Gas Inflation

Rule AUTO 500 12v BILGE PUMP RWB807 bds Manufactured from durable PVC coatedHow the Automatic Sensing pumps work The S series Automatic sensing RULE bilge pumps work on the principle of impeller resistance. They DON'T need a float switch they are fully Automatic sensing pumps. The pump turns on every 2 1 2 minutes for about 1 secondto sense for water. If water is present, the pump will sense resistance at the impeller and continue to run until the water is removed. After that, it will resume checking for water every 2 1 2