The Rule-Mate series of bilge pumps features a solid state water sensing technology that eliminates the need for a separate float switch. When water enters the bilge and reaches a certain height, 2-3/4 Inch a sensor turns the pump on. After the water is pumped out, another sensor shuts the pump off. The sensors’ unique “field effect” technology is ecofriendly because they only sense the dielectric constant of water. In the event of an onboard oil spill, straight motor oil that enters the bilge will not turn the pump on.

Rule RM500B Attributes

• Type: Automated
• Voltage Rating: 12 Volt DC
• Flow Rate: 500 Gallon Per Hour
• Port Type: 3/4 Inch
• Width: 4-1/2 Inch
• Height: 6 Inch

Rule RM500B Features & Benefits

• All-In-One Pump And Switch No Float Switch Required
• Pump Turns On When Water Level Rises And Shuts Off When Water Is Removed
• Will Not Pump Oil Straight Motor Oil That Enters The Bilge Will Not Turn The Pump On
• Snap-Off Strainer For Easy Cleaning
• Anti-Fouling Impeller
• Limited 3 Year Warranty

Rule RM500B Installation Instructions

• bilge-pump-rule-mate-500-1100-gph.pdf

Rule RM500B Technical Bulletins

• ngr-rulemate-bilge-pumps.pdf
• ngr-rulemate-bilge-pumps.pdf

Rule-Mate® 500 Fully Automated Bilge Pump - 12V

Features:

• State-of-the-art water sensing technology
• Pump turns on when water level rises and shuts off when water is removed
• No float switch required
• 500 GPH/1893LPH
• Anti-fouling impeller
• Submersible
• Ignition protected
• Includes back flow preventer
• 3-year warranty