Rule PWC 500 GPH Automatic Sensing Bilge Pump

The Rule PWC 500 GPH Automatic Pump is a next-generation sensing bilge pump that works on the principle of impeller resistance, sized for personal watercraft and small boats. It is designed for PWC owners who want automatic bilge pumping with no float switch needed, in the smallest automatic pump on the market.

The pump turns on every 2-1/2 minutes for about one second to sense for water; if water is present, it senses resistance and continues running until all water is removed. Improved design and performance means this 500 GPH pump produces its rated flow at just 12 volts rather than the 13.6 volts previously required, more typical of onboard voltage supply, with a hidden air vent check valve to prevent airlocking and true electromagnetic suppression (EMC). Browse more options in our bilge and water pumps category.

Key Features: 500 GPH at 12V, electronic sensing (no float switch needed), completely automatic with manual override, stainless steel shaft, includes backflow preventer, sized for PWC and small craft.

Frequently Asked Questions

What craft is this pump designed for? Personal watercraft (PWC) and other small craft.

What's improved about this pump's design? It produces its rated 500 GPH flow at just 12 volts, rather than the 13.6 volts previously required.

Does this pump need a float switch? No, it senses water electronically through impeller resistance.