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#1
posted to rec.boats.building
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Air Compressor For Dockside Work
The air delivered must be oil free to USP standards. Even the slightest
trace of oil can cause respiratory problems. The other problem is with the regulators. A scuba regulators 1st stage will cut the tank pressure down to about 115 psi to 500 psi depending upon brand. the 2nd stage the reduces the pressure to a few psi over ambient pressure. With each 33 feet of depth the ambient pressure increases by 1 atmosphere. The typical craftsman air compressor will be marginal in its ability to deliver air to a surface diver and inadequate in delivery to a diver at any depth. If you eliminate the first stage and just deliver air to the second stage you will overcome the high pressure problem but will have a poor performing regulator from an inconsistent delivery pressure. A scuba set-up the best way to go. It's simpler and more reliable. You will need all the other equipment any way, Wet Suit, Buoyancy device, Weight belt, Mask and maybe fins or rock boots. You will have an easier time working un-tethered and will be safer, less likely to become entangled. John "derbyrm" wrote in message news:I5T1g.935391$xm3.618358@attbi_s21... I once had a diaphragm compressor which produced air that was oil free. I don't remember the CFM (it ran an air brush), but why would such a device be harmful? Roger http://home.insightbb.com/~derbyrm "John Cassara" wrote in message ... NO!!! You can not use a standard compressor for breathable air. At the very least you must filter the air and run an oil separator. There is a reason a dive compressor such as a Hooka cost as much as they do. The air that is delivered is going into your lungs! If your marina has enough call for a diver why not hire one. A properly equipped diver will have greater versatility than a Hooka diver. Even for the very occasional need a local diver would probably love an excuse to go diving while earning a buck or two. John "BajaJim" wrote in message oups.com... Am wondering if anyone has set up a small air compressor rig, 110V, similar to the ones used by divers for hull cleaning services. I assume just a small oil-less compressor and couple it directly to a stock dive regulator? I only need it dockside in a marina with 30A seervice. THANKS for any input |
#2
posted to rec.boats.building
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Air Compressor For Dockside Work
John Cassara wrote: A scuba set-up the best way to go. It's simpler and more reliable. You will need all the other equipment any way, Wet Suit, Buoyancy device, Weight belt, Mask and maybe fins or rock boots. You will have an easier time working un-tethered and will be safer, less likely to become entangled. John A real diver don't need all that Mickey Mouse stuff! |
#3
posted to rec.boats.building
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Air Compressor For Dockside Work
"Bob" wrote in message oups.com... John Cassara wrote: A scuba set-up the best way to go. It's simpler and more reliable. You will need all the other equipment any way, Wet Suit, Buoyancy device, Weight belt, Mask and maybe fins or rock boots. You will have an easier time working un-tethered and will be safer, less likely to become entangled. John A real diver don't need all that Mickey Mouse stuff! Mickey Mouse ? |