Today I'm wearing a diver with its characteristic helium relief valve. I'm an enthusiastic SCUBA diver but will likely never dive below 40m, and certainly will never breathe an exotic tri-mixture of gases while sitting inside of a diving bell. Thus, for me, the
He valve is entirely superfluous. However, last evening I met fellow OF member
@tpatta and found out that in a past life, he had been a commercial diver had indeed required the utility of the
He relief valve! I honestly thought I'd never meet anyone who had use for the valve, and what do you know, I meet a fellow OF member who had used, and needed one! The distinguished gentleman on the right (in the second photo) is
@tpatta, and I'm the dweeb on the left.
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