On Mon, 16 Jul 2007 07:35:43 -0400, Hanz Schmidt
wrote:

I use 2 microns on my racor(500 series). The engine is a Volvo MD-30.

With a 10 some sludge will get thru..

This topic has been debated endlessly on the Trawler mailing lists
where it was a hot topic for a while. Most engine manufacturers
recommend 10 micron for the primaries, typically Racors, and 2 microns
in the secondary engine mounted filters. Their rationale is that the
10 micron filters capture a lot of the smaller particles also, and
that the secondaries need to be replaced on a regular schedule
regardless.

Sludge is heavy, much larger than 10 microns. If you have sludge
getting through your Racors they are leaking, probably because you are
using FG500s without the necessary spacer. This is a common problem
with the Racor 500s and many people do not know about it. I ended up
replacing my 500s with 900s but that would be overkill for small
sailboat engines.

For more information on the 2 micron vs 10 micron debate look he

http://www.google.com/search?hl=en&q...& btnG=Search

or

http://tinyurl.com/258xnk

"Wayne.B" wrote in message
...
On Sun, 15 Jul 2007 19:58:08 -0500, "KLC Lewis"
wrote:

Every 50 to 100 gallons? Good gravy! I haven't used 20 gallons in 6 years.
This is going to take a while...

Clearly you need bigger engines... :-)

"Engines," the man says. lol

Ya, that would certainly help :-D

Wayne.B wrote:

Clearly you need bigger engines... :-)

I get about 20 emails a day saying I need something bigger but this is the
first time anyone has mentioned engines.

--
Roger Long

On Mon, 16 Jul 2007 13:26:54 -0400, "Roger Long"
wrote:

Wayne.B wrote:

Clearly you need bigger engines... :-)

I get about 20 emails a day saying I need something bigger but this is the
first time anyone has mentioned engines.

Yeah, I get those loan solicitations too.

--Vic

StarTron report posted 07/20:

My sediment bowl had been clear for two years and had just a few deposits of
green on the sides when I put the StarTron in and first posted this thread.

About four engine hours later, the sediment bowl is solid green and I'm
about to replace all my filters. It certainly seems like the StarTon is
doing something and is more than just the mineral spirits that PRI claims.

--
Roger Long

Was it 'solid green' or more like 'coffee grounds'??

Hanz


Roger Long wrote:

StarTron report posted 07/20:

My sediment bowl had been clear for two years and had just a few
deposits of green on the sides when I put the StarTron in and first
posted this thread.

About four engine hours later, the sediment bowl is solid green and I'm
about to replace all my filters. It certainly seems like the StarTon is
doing something and is more than just the mineral spirits that PRI claims.

"Hanz Schmidt" wrote
Was it 'solid green' or more like 'coffee grounds'??


When I looked in the bowl with a flash light behind it yesterday, it looked
solid dark green, as if it had been filled with paint. My heart skipped at
every little change in engine sound on the six hour motor home.

When I drained it today, there was no water (after 2 1/2 seasons) and it
looked just like red fuel as it drained out. The sediment bowl was mostly
clear after with about 20% coverage of something that looks like alge. The
2 micron Racor filter, originally white, was dark green, almost black. The
secondary filter looked like it had been put in yesterday. No coffee
grounds.

--
Roger Long

I believe it is a result of the soltron(startron) which attacked the
leftover algae that was on the bottom/side/top of the fuel tank. It
'eats' it up and allows the filter to take it out.

I've had the same thing in my racor 2 micron.

It's doing it thing...

Hanz
Roger Long wrote:
"Hanz Schmidt" wrote

Was it 'solid green' or more like 'coffee grounds'??



When I looked in the bowl with a flash light behind it yesterday, it looked
solid dark green, as if it had been filled with paint. My heart skipped at
every little change in engine sound on the six hour motor home.

When I drained it today, there was no water (after 2 1/2 seasons) and it
looked just like red fuel as it drained out. The sediment bowl was mostly
clear after with about 20% coverage of something that looks like alge. The
2 micron Racor filter, originally white, was dark green, almost black. The
secondary filter looked like it had been put in yesterday. No coffee
grounds.

--
Roger Long

On Fri, 20 Jul 2007 21:43:00 -0400, Hanz Schmidt
wrote:

It's doing it thing...

I agree. It's not unusual for the filters to load up a bit after
using a fuel treatment. That's a good thing because it means the gunk
is being cleaned out of the tanks and being redeposited in the
filters.

A little extra vigilance is required with the filters however while
this is going on.