Engine Size?
Hours per year?
Longest trip?
Symptoms of the current issue?
\
These would help answer it.

Assuming your boat has been working OK with current filters, you could
go in series with a racor 900 30 micron in front of your current
filter. 30 u will pick up most of the crud and the filters are only
$10 to replace (Keep 4 per engine minumum on the boat) it will also pick
up the water.

This will not allow you to change filters underway but unless you are
making really long trips or can't get to them underway then you can
probably do without.

BTW... this is NOT redundancy unless you put them in parallel... I
prefer serial. BTW... spend the extra couple bucks and buy the guage
for the top. It will help prevent you from filling them up with gook
and not knowing.






map wrote:
ok so here is an old question that I have not seen discussed recently.

My mechanic says not to polish, will be better off by installing two
(twin engines) of the redundant big racors, I'm sure that's the best
way to go, but at $1,200 each I'm looking at spending aprox. $4,000
when you include instalation.
I was thinking to buy a couple of the large single Racors, one per
engine and leave the old small units for redundancy, if I can make this
work I can probably get it done for under a thousand bucks and still
have a redundant system for each engine.....
And of course there is the question of professional polishing...
thoughts out there??