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From: Len den Besten (no email)
Date: Fri Apr 21 2006 - 02:16:00 EDT
Kevin,
I made the following setup:
Because algae/bacteria need water to live in, right next to the fuel
they consume, I chose to remove the water on a periodical/constant
basis. That way I prevent existence/growth of bacteria in my tank. I
have aluminum tanks against the hull-surface so condensation is
formidable in winter. I don't use biocides.
For around 60 euro's I bought 2 (for two tanks) automotive 12volts
fuelpumps suited for diesel-oil and 2 filters with water-separator
(The Delphi's with the glass bowl were reasonably priced).
I made an additional fuel line right to the very lowest point (water
is heavier than fuel) and I now can periodically filter the water
and small debris out. The filtered fuel is returned to the tank. I
even can move the fuel from one tank to another this way but thats
another subject.
When you have a small access you can use such a setup with a longish
pipe, sucking up the water/debris from the lowest point in the tank
maybe helped by a little heel caused by your halyard.
I your case you could use this setup to "polish" the fuel yourself,
storing it in a container so after emptying you can clean the tank
with a solvent you could spray around so you flush the undesirable
creatures and debris to the lowest point where you suck 'm up...
When, after all, you do get a filter clogged the double filter setup
is very nice. With use of T-valves you make part of the fuel line
into a double fuel line, each of which contains two valves and a
filter in between. This makes changing filters at sea almost a fun
job...
You can also use these strong fiber-handtowels as used in a garage
for filtering when clogging is massive and you're running out of new
filters. I use them wrapped once around a filter and it worked
perfectly when I just replaced it with a new piece of towel. I
thought it was called polypropylene-cloth but I can be mistaken
here.
Till now I never believed these fantastic stories about fuel filters
that would kill the algae/bacteria by means of magnetism cause even
when killed the remaining (dead?) organisms "bodies" would clogg up
the filter.
Anyone here who has positive experiences with these magnetic filter
like "Debug" ?
--- In , "Kevin" <pompatis at dot dot dot > wrote:
-------------snip----------------
> > The main issue I have to deal with is muck in the fuel tank
> (Volvo Penta MD-7A 13 HP Diesel). Whenever we got into chop, the
> primary filter would rapidly clog indicated by increasing vacuum
> on the fuel line and decreasing engine performance.
> (.....)
> There is a very small access plate on the top of the tank (tank is
> under the cockpit). It may not even be big enough to get my hand
> into. I can pump the fuel out through that or through the fill
> entry.
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