Have quite a bit of recent experience with the whole fuel polishing thing (
http://www.trawlerforum.com/forum.spark?aBID=115492&topicID=41132459&p=3 ), For $500+ dollars, you can build more that one dedicated units that will turn over your fuel in hours, not weeks. It's a little pump... for $500... a little pump... and it's $500... for a pump... $500. There are better solutions.
I am putting off a full blown parts list of what I did (with a TON of help from the people here) because I am just lazy and got my eyes crossed looking at the Grainger catolog for weeks. But I swear I'll get to it and put it on Bess' blog soon. Still, my loss can be your gain because for about the same amount of money, you won't need but a few valves and fittings, a motor and a pump. If you can do some homework and have some patience, it won't be a big deal. And with your two filters dedicate one to full-time 60 gph duty! Technically, mine was closer to $800, but I made some mistakes and bought a few things twice, but it was totally worth it.
HOWEVER, there are some different opinions on the need to polish fuel at all, so be aware of that. But don't discount their advice when it comes to plumbing.
I see the FPM-50 as a waste of cash. (if the whole $500 pump thing wasn't enough
) If you want a polisher, do it right and get a honkin' AC pump and really move through some liquid
**Look everybody... y'all learned me sumptin'!!**
-- Edited by GonzoF1 on Thursday 31st of March 2011 08:50:35 PM