Rule 500 GPH Boat Bilge Pump – 12V & 24V is an electric marine pump designed to remove normal water accumulation from the lowest part of a boat’s bilge. With a rated flow of 500 gallons per hour, approximately 1,893 litres per hour, it supports routine drainage of rainwater, spray, seepage, minor spills, and water collected through normal boat movement. The pump uses a 3/4-inch (19 mm) discharge outlet for connection to compatible flexible marine bilge hose. Rule’s official information identifies 500 GPH as 1,893 LPH and lists a 3/4-inch hose connection for pumps in this capacity range.

This boat bilge pump is available in three variants, allowing buyers to match the pump to the vessel’s DC electrical system and preferred operating method. The first option is a 12V automatic bilge pump. The second is a 12V non-automatic bilge pump, and the third is a 24V non-automatic bilge pump. The automatic version is intended to manage normal pumping cycles automatically, while the non-automatic versions require external control through a suitable panel switch or a separate automatic float switch. Always select the voltage that matches the boat: use the 12V model with a suitable 12V DC system and the 24V model with a suitable 24V DC system. Rule’s installation guidance identifies separate float switches as necessary for non-automatic bilge-pump configurations.

As a bilge pump for boat drainage, the Rule 500 GPH model is installed in an accessible low area where water can reach the pump intake. It is suitable for smaller recreational and working craft where moderate-capacity bilge-water removal is required, or as an additional pump serving a separate compartment or drainage point. The manufacturer states that its bilge pumps are intended for normal water in an intact boat and are designed for fresh water and salt water only. They are not damage-control pumps and should not be relied upon to manage major flooding caused by hull damage.

Correct installation is important for dependable operation. Use compatible 3/4-inch flexible hose, correctly sized marine wiring, an appropriate fuse, secure electrical connections, and a properly routed discharge line. Electrical connections should be protected from water and corrosion, while the intake should remain accessible for inspection and cleaning. Before ordering, confirm the vessel’s system voltage and whether automatic operation or separately switched operation is required.

Key Features:

• Rule 500 GPH Boat Bilge Pump – 12V & 24V provides a rated flow of 500 GPH, equal to approximately 1,893 LPH, for routine bilge-water removal.
• Available in three variants: 12V automatic, 12V non-automatic, and 24V non-automatic.
• Every listed variant has a 3/4-inch (19 mm) discharge outlet.
• The automatic model is designed for automatic operation during normal bilge-water pumping cycles.
• The non-automatic models can be controlled by a suitable external panel switch or a separate float switch.
• Available for compatible 12V and 24V DC marine electrical systems.
• Intended for normal freshwater and saltwater accumulation in an intact boat’s bilge.
• Designed for installation in low bilge spaces while maintaining access for inspection and maintenance.
• Connects to flexible marine bilge hose with the correct internal diameter.
• Suitable for routine drainage or as an additional pump within a properly planned bilge system.

Applications / Suitable For:

• Rule 500 GPH Boat Bilge Pump – 12V & 24V is suitable for removing rainwater, spray, seepage, and minor onboard water accumulation from a boat bilge.
• Small motorboats, fishing boats, recreational craft, tenders, dinghies, and similar vessels with a compatible DC system.
• Engine compartments, aft bilges, cabin bilges, and other accessible low-drainage points.
• Boat owners needing a 12V automatic bilge pump for normal automatic water removal.
• Installations requiring a 12V or 24V non-automatic boat bilge pump with separate control.
• Replacement or additional pump installations using a 3/4-inch discharge hose.
• Fresh-water and salt-water boating environments when installed according to the manufacturer’s instructions.

FAQs:

Q: What is the Rule 500 GPH Boat Bilge Pump – 12V & 24V used for?
A: It removes normal water accumulation from a boat’s bilge, including rainwater, spray, seepage, and minor spills.

Q: Which variants are available?
A: It is available as a 12V automatic pump, a 12V non-automatic pump, and a 24V non-automatic pump. All variants have a 3/4-inch outlet.

Q: Does the non-automatic version need a separate switch?
A: Yes. The non-automatic Rule bilge pump requires a suitable external control, such as a panel switch or a separate float switch.

Q: Can this pump be used for emergency flooding?
A: No. It is intended for normal bilge-water removal in an intact boat, not for damage control or major flooding caused by hull damage.