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Good advice, Alex.
Seahorse came to me with a Racor waste oil fuel blender, which I use only as
a polishing system. The Oberdorfer gear pump pulls a 22-inch vacuum on clean,
twin (parallel) 10-micron 2020TM elements so it sees only clean fuel. It takes
about 2 hours to send 800 gallons from one tank to the other. The PO told me
that in his passage around the Horn (Port Townsend, WA to Wickford, RI, he
changed the Lugger's secondary (2-micron) only twice. The primaries are 30-micron
900-series. I have not changed either since I bought the boat in August (250
hours ago).
John
"Seahorse"
lying off Charleston's south jetty
Alex Hirsekorn wrote:
One other caveat about my earlier post: I suggested putting the pump
first in line. That's just a personal preference based on making leaks
easier to find. I think that most people would choose to put the pump
after the filter(s) so that the pump would only be seeing pristine
fuel (less wear, less clogging). If the pump and filter are properly
matched a 'pump last' configuration will also allow the use of a
vacuum gauge to monitor the polishing operation.
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