The Rule Industries RM500B24 Rule-Mate automatic bilge pump delivers reliable, hands-free water removal for 24-volt marine applications. This fully automated pump uses advanced solid-state water sensing technology that eliminates the need for a separate float switch, providing true set-and-forget operation for your vessel.
Intelligent Auto-Sense Technology:
The pump automatically activates when water reaches 2.5 inches and shuts off at 5/8 inch water depth, keeping your bilge clear of nuisance water. The sensors measure dielectric constant and will only recognize water—pure motor oil that enters the bilge will not turn the pump on, making this an environmentally conscious choice. Unlike other automatic bilge pumps, there is no continuous power-draining test cycling.
Advanced Backup Protection:
If debris or contaminated water fouls the sensor, the pump's intelligent backup mode prevents battery-draining run-on conditions. The system will automatically enter a 2.5-minute cycle testing mode, continuing to check for and pump water while protecting your battery. Once the debris is cleared, the pump automatically reverts to normal level sensing operation.
Key Features:
- 500 GPH (1,893 LPH) flow capacity at 24 volts
- Solid-state water sensing technology—no float switch required
- Compact design, two-thirds the size of previous models
- Built-in thermal cut-off protection prevents overheating
- Integral backflow prevention check valve reduces odor and keeps bilge cleaner
- Hidden air vents help prevent airlocks in challenging installations
- Anti-fouling impeller design
- 3/4" threaded discharge outlet with included hose barb
- Fully submersible and ignition protected
- 3-year manufacturer warranty
The RM500B24 is ideal for boats and vessels with 24-volt electrical systems, offering dependable performance in a compact, maintenance-friendly package. The threaded discharge design makes installation and maintenance easier, while the snap-off strainer base allows for quick debris cleaning.
