if you take your valve off, that means you have had to drain all the air out of the cylinder after your dive, and now you need to have it vip again to have it filled.
just some food for thought, as long as you end your dive with some air in the tank, and the water pressure from the depth you are at does not exceed the air pressure in the tank you should not have to worry about water in the tank form diving. i would be worried more about moisture from the compressor at the dive shop and from getting hot fills when you get your tanks filled
just some food for thought, as long as you end your dive with some air in the tank, and the water pressure from the depth you are at does not exceed the air pressure in the tank you should not have to worry about water in the tank form diving. i would be worried more about moisture from the compressor at the dive shop and from getting hot fills when you get your tanks filled