In the next generation sensing bilge pumps, the 500 GPH 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...

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In the next generation sensing bilge pumps, the 500 GPH 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". Improved design and performance means that our new 500 GPH pump will produce this flow at just 12 volts rather than 13.6 volts as previously required, more typical of on board voltage supply. Our next generation of Rule pumps include check valves and to do this we've created a hidden air vent to prevent airlocking. Under each strainer tab there is a small hole that vents any air trapped in the pump housing preventing airlocks. We have true electromagnetic suppression (EMC) and have a built-in thermal cell that protects the pump and the vessel when things get too hot. These are the smallest automatic pumps on the market.

  • Peace of Mind: Automatic checks every 2.5 minutes ensure continuous reliability; the pump runs for only 0.5 seconds per cycle, minimizing energy use while offering constant protection against unexpected water intrusion for your boat. A standard pump and float switch activate when water reaches 2" (5cm), while Rule automatic bilge pumps activate at 5/8" (1.6cm) and drain water down to 1/4" (0.6cm) for superior water removal.
  • Energy Efficiency: With a low daily power consumption of just 0.20 amps, this automatic bilge pump provides environmentally friendly water removal, significantly reducing your boat's energy footprint while maintaining reliability for eco-conscious marine enthusiasts.
  • Effortless Installation: Simplify setup with the threaded port design, eliminating the need for a separate float switch or third wire; this hassle-free configuration makes our automatic bilge pump for boats an ideal choice for quick and easy installation.
  • Enhanced Safety: Built-in thermal cut-off protects against overheating; this automatic bilge pump provides reliable operation under demanding conditions, ensuring your boat's water management system remains secure and hassle-free even on extended trips.
  • Durability Meets Convenience: The quick-release strainer and rugged plastic body make maintenance a breeze; ensuring longevity and ease of use, this automatic bilge pump is perfect for busy boaters seeking reliable performance without regular upkeep.
  • Peace of Mind: Automatic checks every 2.5 minutes ensure continuous reliability; the pump runs for only 0.5 seconds per cycle, minimizing energy use while offering constant protection against unexpected water intrusion for your boat. A standard pump and float switch activate when water reaches 2" (5cm), while Rule automatic bilge pumps activate at 5/8" (1.6cm) and drain water down to 1/4" (0.6cm) for superior water removal.
  • Energy Efficiency: With a low daily power consumption of just 0.20 amps, this automatic bilge pump provides environmentally friendly water removal, significantly reducing your boat's energy footprint while maintaining reliability for eco-conscious marine enthusiasts.
  • Effortless Installation: Simplify setup with the threaded port design, eliminating the need for a separate float switch or third wire; this hassle-free configuration makes our automatic bilge pump for boats an ideal choice for quick and easy installation.
  • Enhanced Safety: Built-in thermal cut-off protects against overheating; this automatic bilge pump provides reliable operation under demanding conditions, ensuring your boat's water management system remains secure and hassle-free even on extended trips.
  • Durability Meets Convenience: The quick-release strainer and rugged plastic body make maintenance a breeze; ensuring longevity and ease of use, this automatic bilge pump is perfect for busy boaters seeking reliable performance without regular upkeep.

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