![Rule 500GPH Electronic Sensing Bilge Pump - 12V [25SA] Brand_Ronstan the 1100GPH 24V S series](https://cdn.shopify.com/s/files/1/0499/1942/6726/products/64159XL.jpg?v=1605263311)
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the 1100GPH 24V S series pump works on the principle of impeller resistance
GPSMAP 1022xsv chartplotter
Includes 10" cable harness
Integrated stainless steel hub to accept lashing attachment and through-sheave becket
Quite simply
Rule 500GPH Electronic Sensing Bilge Pump - 12V [25SA] Brand_Ronstan the 1100GPH 24V S series500GPH 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"!!!
