Doug Dotson wrote:

Actually, we are talking about permanently installed polishing systems
that run for extended periods of time. In general, they run the entire time
the engine iss running and also when the boat is sitting at anchor or at a
dock they run for several hours per week.

OK, in that case I would look very closely at the Alfa Laval
unit. It is very small, 110VAC low power. No filter beats a
centrifuge for use like that.

If I really wanted to do it right I would put one on the
lube oil as well.

Rick