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I put together a filter system for a remote source pressure demand face
mask that I use when spraying 2 part LPU. All from modular Speedair filters from Grainger. It starts with a general purpose separator/filter then a regulator, then a coalescing filter to remove oil and another general purpose filter with a carbon element to grab any remaining VOCs. Same series as used on a $2K MSA air source for a total cost of about $120. With a little oilless compressor on deck it would make a very acceptable air source for bottom cleaning. Jim Woodward wrote: We met an interesting and inventive guy on our trip through the Panama Canal who dealt with this by making his own electric hookah -- take one Jabsco diaphragm bilge pump, attach hose and a SCUBA mouthpiece and presto, you have cheap device that will work down a few feet. You want a diaphragm bilge pump, not a pressure water pump, because the former is relatively high volume, low pressure. We used a "real" hookah from Brownie for work on the boat. Vast overkill. For Fintry, I'm thinking about using a commercial oil-less compressor (Porter Cable, for example) which will run air tools and, through a filter (same filters we use on our tank-fill compressor) drive a low pressure hose for use down to ten feet or so. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
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