Next message: Ken Tischler: "T&T: Inverter fluctuating voltage question"
What apparently few people understand about multi-stage filtration is the
process called "caking". Edge type filters (Racor for example) accumulate
fine
particles on the surface which enhance the filtration. If you use a 3 micron
element on the primary filter virtually all the particles get trapped at this
point and the secondary filter never gets any caking. By using a 30 micron
filter as the primary, the smaller particles pass thru to the secondary thus
making it more efficient. The caking process is most evident on swimming pool
filters that use diatomaceous earth. The filter is basically just a screen
and
the diatomaceous earth is spread across the surface of the filter and is
sucked
into the filter screen where it cakes on the surface and becomes the filter.
Continue using either a 30 or 10 micron primary filter. The article in
PassageMaker Magazine was incorrect and most engine manufactures specify the
higher
rated filters for primary application.
Mike, I fully agree with you, the passagemaker article was written by the
editor, Bill P.
He and I have totally different cruising philosophies, and look at boating
very differently. His professed boating wisdom, or lack of it at times, is
passed down as if spoken by god himself. I don't mind speaking ones piece, I
sure
do enough of it. It's when you set yourself up as an expert and then gather a
flock who think that what you say is the only truth. I have a problem with
that. Since Passagemaker was just purchased, perhaps Bills days are numbered.
Jim
Clausen
_______________________________________________
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To Unsubscribe send email to
Include the word Unsubscribe (and nothing else) in the subject or body of the message.
Trawlers and Trawlering, T and T, TrawlersandTrawlering, and TandT are trademarks of Water World International. Unauthorized use is prohibited.
