Xylem 25SA 500 GPH Automatic Electronic Sensing Bilge Pump 12V

The Xylem Rule 25SA is a fully automatic submersible bilge pump that delivers 500 gallons per hour of reliable water removal for boats and marine applications. This next-generation pump uses advanced electronic sensing technology that operates on the principle of impeller resistance, eliminating the need for traditional float switches and providing superior low-water pumping capability.

Automatic Electronic Sensing Technology:

• Checks for water presence every 2.5 minutes by running for approximately one second
• When water is detected, pump senses resistance and continues running until all water is removed
• Activates at just 5/8 inch water level and drains down to 1/4 inch
• Superior performance compared to standard float switches that activate at 2 inches
• Ultra-low power consumption at only 0.20 amps per day during monitoring cycles

Performance Specifications:

• Flow Rate: 500 GPH at 12 volts DC
• Current Draw: 1.6 amps at 12V during pumping
• Maximum Head: 11 feet
• Discharge Port: 3/4 inch threaded fitting
• Compact Dimensions: 4.2 inches high x 2.9 inches wide x 2.5 inches deep

Durable Construction and Safety Features:

• Totally submersible design with heat-resistant acetal resin housing
• Built-in thermal cut-off protection prevents overheating and motor damage
• Integrated check valve prevents backflow into bilge
• Anti-airlock venting system built under strainer tabs prevents pump cavitation
• Quick-release strainer for easy cleaning and maintenance
• Ignition protected for safe marine use
• Double-insulated long stack motor with PTFE moisture-tight seals
• Heavy-duty 5/16 inch stainless steel shaft with nylon/fiberglass impeller

Installation and Operation Benefits:

• No float switch required simplifies installation
• Compact footprint fits in tight bilge spaces
• Silent, vibrationless operation
• Runs 100 degrees cooler than standard pumps
• No burn-out when run dry
• Electromagnetic suppression (EMC) prevents electrical interference
• Maintenance-free design for reliable long-term operation

The Xylem Rule 25SA automatic bilge pump provides peace of mind with continuous monitoring and efficient water removal, making it an ideal choice for recreational boats, sailboats, and small watercraft where space is limited and automatic operation is essential.