This next generation water-sensing bilge pump works on the principle of impeller
resistance. The pump turns on every 2-1/2 minutes for about one second to
sense for water. If water is present, the pump will sense the resistance
of the water against the impeller and continue to run until all the 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"!, with no float switch required
Rule pumps have true electromagnetic suppression (EMC). They have a built-in
thermal cell that protects the pump from overheating.
• Completely automatic operation with manual override - no float switch
• Most compact automatic bilge pump in its class
• Ignition protected
• High efficiency, low amp motor
• Stainless-steel shaft
• Includes backflow preventer