April 2007 Issue
Chandlery: Filter BOSS
You can convert to a dual fuel filter system by adding a second primary filter to your existing system or by installing a pre-engineered system, such as the FilterBOSS by KTI Systems. Designed for use with diesel engines with a maximum flow rate of 35 gallons per hour, the FilterBOSS is a modular unit containing a fuel pump, an integral, vacuum-based fuel-flow monitoring system, and a manifold designed to allow two filters to be installed (one online and one offline on standby).
For people concerned about losing fuel flow to their sailboat auxilliary engine while underway due to a clogged fuel filter, the FilterBOSS looks like a promising solution. The FilterBOSS can be ordered as a stand-alone unit ready to be plumbed into your existing fuel system ($950), or as part of a pre-mounted system containing your choice of two Racor filters (various models available). The unit we received for review was the 500FG Dual Filter Package, which includes a FilterBOSS with wiring harness and two Racor 500FG filters mounted and connected with rigid tubing on a pre-drilled, composite panel ($1,565). It features Type 1 copper tubing (.035-inch wall thickness), Bi-Lok CA360 grade brass fittings, heavy-duty valves (with Viton seals), and a Con-X weather-tight cannon plug for the wiring harness. The system also allows a convenient way to “polish” your fuel and rid it of debris that may clog your fuel system
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