Xylem’s Rule LoPro bilge pump
What is the Rule LoPro bilge pump?
Xylem’s Rule LoPro bilge pumps are just 2.4 inches (6 cm) tall and engineered specifically for boat bilges with limited vertical clearance where standard-height pumps cannot fit. The series includes two models: the LP900S and the LP900D.
How does the Rule LP900S bilge pump work?
The LP900S model offers two automated operating modes. In the first mode, high or low water sensing, the pump activates when the water level reaches either 2 inches (5 cm) or 1.3 inches (3.25 cm), depending on how the motor cartridge is oriented. In the second mode, automatic, the pump turns on every 2.5 minutes to check for water and continues running until the bilge is clear. The LP900S requires no manual intervention during normal operation.
How does the Rule LP900D bilge pump work?
The LP900D model operates using a traditional float switch and/or a panel switch, giving boat owners manual and semi-automatic control. It is suited for installations where the operator prefers conventional switch-based activation over electronic sensing.
What are the key specifications and features?
Both the LP900S and LP900D models share the following design features:
- Height: 2.4 inches (6 cm) fits low-clearance bilge compartments
- Discharge body: fully rotating up to 180°, enabling flexible hose routing during installation
- Discharge ports: 3/4 in. (19 mm), 1 in. (25 mm), 1 1/8 in. (28 mm) straight hose barb or 3/4 in. (19 mm) 90º elbow all supplied with pump
- Check valve: tricuspid design to prevent water backflow through the discharge line
- Mounting: compatible with horizontal or vertical installation to accommodate varied bilge configurations
What types of boats is the LoPro bilge pump designed for?
The Rule LoPro bilge pump is designed for recreational and working boats with shallow bilge compartments where conventional bilge pumps cannot be installed due to height restrictions. It is particularly suited to small powerboats, pontoon boats, and sailboats with limited bilge depth. Both models are compatible with standard 12V marine electrical systems.
Frequently Asked Questions
How tall is the Rule LoPro bilge pump?
The Rule LoPro bilge pumps (LP900S and LP900D models) stand 2.4 inches (6 cm) tall, making them among the lowest-profile automatic bilge pumps available for marine use.
What is the difference between the LP900S and LP900D?
The LP900S model uses automatic sensing with two selectable water-level trigger points (2 in./5 cm or 1.3 in./3.25 cm) or a timed cycle mode that checks for water every 2.5 minutes. The LP900D model uses a traditional float switch and/or panel switch for activation.
Does the Rule LoPro bilge pump prevent backflow?
Yes, both LoPro bilge pump models include tricuspid check valves in the discharge line to prevent water from flowing back into the bilge when the pump is off.
What discharge hose sizes are compatible with the LoPro pump?
The LoPro Series supports 3/4 in. (19 mm), 1 in. (25 mm), 1 1/8 in. (28 mm) straight hose barb or 3/4 in. (19 mm) 90º elbow discharge ports. All four port options are included with the pump.
Can the Rule LoPro bilge pump be mounted horizontally?
Yes, both LP900S and LP900D models support horizontal and vertical mounting to accommodate different bilge layouts.