inspect your own tanks

[captndale]

Depending on your regulator, you may not be able to get much, if at all, below the IP pressure of somewhere between 120-145.

The Rhode Island study is more then a bit bogus as it put 500 ml of water into a cylinder. That is the equivalent of a Kinger of Bud, not likely to occur. It also showed that fresh water was not all that bad, but salt was the killer to tanks. The major sources of water entrainment is wet valve connections at the time of filling and poorly maintained compressors. Compressors on boats being some of the worst with a lot of posts on very poor reports on compressors on Southern Cal boats. I do remember a tank I borrowed from a dive who crewed on one of the NY/NJ boats in the late 80's, I had this tank in Lake George and was getting a very strong salt taste, that tank got blown down and rinsed out.

I once witnessed a diver pour nearly a litre of water out of a pony bottle after a dive. He had breathed it dry depth and then descended a few feet deeper. The water simply went up through the regulator and into the tank.