Oops! I meant to say that traditional holders a cheaper than the TP units.

Doug
s/v Callista

"doug dotson" wrote in message
...
I'm pretty much convinced. Traditional filter holders can be had for a
little more than
TP holders and the filters are not all that expensive. In addition I can
pick and choose
which filters to used based upon what happens in actual practice. Since
the
holders
are pretty cheap, I am planning to install 2 in series so I can stage
filter
porosities if
necessary. Thanks for the insite Rich. IMHO going with proven industry
equipment
just makes sense especially since it is not prohibitively expensive.
Although the TP
and PT units seem attractive, I wouldn't be comfortable with them without
a
following
filter (which seems to be the norm) and that drives the cost up both in
terms of space
and also elements.

Rich, do you thing that 2 filters in series is a good idea? If so then how
about vacuum
gauges? Shoufl I install one in between the 2 filters?

Doug
s/v Callista

"Rich Hampel" wrote in message
...
We're starting to flog a dead horse here .... so my very last comment
on all this is:
... take a toilet paper roll, get a container, immerse it in any oil
that you want and let it soak, then add 1" of water to settle at the
bottom of the container with the TP .... to the bottom of whatever you
contain the toilet paper, let sit a week or more, remove and examine
that the TP has fallen apart where the water has come in contact with
the TP. Now consider that the TP in poorly designed boat system is
held in place by a knife edge seal biteing into the end of the TP
roll........ What happens later on when there is differential pressure
across 'mush' (papier mache) being held by a knife edge seal and has a
differential pressure across it.

Water in fuel oil is common, as an emulsion from the refinery (errors
in handling, etc.) and as the product of condensation on the tank farm
walls with water entering the tankage through the tank vent, etc.

I've herein posted what is the normal industry methods,
'state-of-the-art' ..... and what is 'snake oil'.
.....and thats the final comment from me.



You again mention non resin cellulose filters falling apart when wet.
The home test I mentioned recently (I thought) would convince you
that these filter materials *don't get wet* in the intended
application?
Ever hear of gravity settling and equlibrium displacement ? Dont
consder to ever get a job as a lab tech.... you wont make it.


Brian W