BG-One: Solid-State Bilge Pump Switch and Oil/Fuel Detector

The BG-One from Blue Guard Innovations is a compact, solid-state bilge pump switch and oil and fuel detector designed to improve onboard safety and environmental protection. Built to work with common marine electrical systems, the BG-One senses when oil or fuel is present in the bilge and automatically disables the bilge pump to prevent accidental discharge of contaminants overboard. This device gives boat owners a reliable, modern alternative to traditional float switches and mechanical sensors.

At its core, the BG-One is a solid-state control unit that integrates pump switching with contamination detection. Because it is solid-state, it has no moving electrical contacts that can corrode or stick, offering longer life and greater reliability in corrosive marine environments. The unit is compatible with both 12-volt and 24-volt battery systems, making it suitable for a wide range of small craft, workboats and larger pleasure boats that use DC bilge pumps. It is rated to source up to 20 amps, which allows it to power many commonly used DC-powered bilge pumps directly without the need for an additional relay.

Installation is straightforward for anyone familiar with basic marine wiring: the BG-One is wired into the bilge pump circuit and positioned so its contamination sensor can reliably detect oil or fuel in the bilge area. Because it is designed for direct integration into existing bilge pump systems, the unit can replace or supplement traditional float switches, or be added to boats that need improved pollution-prevention measures. The manufacturer’s guidance for wiring and mounting should be followed closely to ensure dependable operation and compliance with any applicable regulations.

One of the more useful features of the BG-One is its three operating modes, which allow owners to tailor pump behavior to different environments and boating scenarios. These modes are intended to cover typical situations such as operating in marinas, in protected marine sanctuaries, and on the high seas, where the balance between keeping the bilge dry and avoiding the discharge of contaminants varies. Choosing the appropriate mode helps boaters comply with local rules and best practices while protecting equipment and the marine environment.

Modern monitoring convenience is provided through a smartphone app that lets boat owners monitor and control the BG-One remotely. Through the app, users can check pump status, receive alerts if oil or fuel is detected, and change operating modes without having to access the device directly. This connectivity helps owners respond quickly to bilge events and maintain situational awareness whether they are onboard or ashore. Exact connectivity range and requirements depend on the installation and the mobile device used; consult the product documentation for specifics.

Beyond its primary function of protecting the environment and reducing the risk of illegal discharge, the BG-One also helps protect bilge pumps themselves. By shutting the pump off when oil or fuel is present, it prevents the pump from continually running while attempting to remove contaminants—an operation that can overload, overheat or shorten the life of a pump. In addition, reducing unnecessary pump cycles conserves battery power and limits wear on wiring and switches.

Maintenance requirements for the BG-One are light compared with mechanical switches. Periodic inspection to ensure the sensor area is free from heavy debris or oil buildup, and routine checks of electrical connections, will keep the unit operating reliably. Because it uses solid-state switching, there are fewer serviceable parts and less risk of mechanical failure, which is an advantage for boat owners who depend on consistent bilge protection during long passages or when leaving vessels unattended.

The BG-One is positioned as a practical, user-friendly solution for environmental protection, equipment longevity and smart monitoring on board. With support for common DC systems, a 20-amp sourcing capacity, three user-selectable operating modes and smartphone control, it addresses the needs of recreational and commercial boaters concerned about pollution prevention and bilge system reliability. Price: $219. bluebgi.com

This article originally appeared in the September 2018 issue.