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Fuel transfer/polishing pump
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 |
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