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I'm a public safety (rescue and recovery) diver in Connecticut. Our team, with few exceptions, uses aluminum 80 cf tanks. Our SOGs limit dive times for each diver to 20 minutes. In 20 minutes, I use very little air--from 600 to 1000 psi depending upon effort. It seems I could get by with a...

I am new to public safety diving. I am a member of a volunteer group in Connecticut. One of our officers uses only 63 cubic feet tanks. He explained that he does so because he has a short torso and it is more comfortable when sitting on the edge of our boat waiting to dive. He said the team...

Thanks for the tip. Vinegar worked like a charm. I was removing the SPG because I wanted to take it out of on old console to use on a pony bottle and to change the length of the hose. Dave

Hi: I'm attempting to remove my SPG from its hose. However, there is brass oxidation where the nut on the SPG (which is brass) meets the nut on the hose (which is not brass). Those darned nuts won't move. And, worst of all, the brass nut on the SPG is soft, so it is beginning to strip...

I assume from your response that removing the SPG from the hose is as simple as disconnecting the hose from the first stage? The SPG does not need to be calibrated or anything like that after removal?

I am interested in changing the length of the hose to my SPG. Is this something I can do myself? If so, are there any potential problems of which I must be aware? Thanks.