500GPH Electronic Sensing Bilge Pump - 24VIn the next generation sensing bilge pumps, the 500GPH 24V 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"!!! Great idea when power conservation is needed and as an added benefit, no float switch is needed!All that plus the added benefits of our standard bilge pump:Check valve included with hidden air vent to prevent airlockingTrue electromagnetic suppression (EMC)A built-in thermal cell that protects the pump and the vessel when things get too hotThese are the smallest automatic pumps available on the market!!!Features:Completely automatic with manual override - No Float Switch Needed!Submersible and Ignition ProtectedHigh efficiency, low amp motorStainless-steel shaftIncludes backflow preventerWARNING: This product can expose you to chemicals including 1,3-Butadiene which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
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