tank cleaning

Did some other scuba material maintenance as regs and went well so far. Decided to get to Alu tanks which were thrown and not maintained since a loooong time, and probably filled with not that great air. Will stay on non oxygen tanks, thinking about air only. So after having the troubles with...

I just got a few tanks back from hydro today. Inspired by a recent thread on tank whips and a post recommending phosphoric acid instead by @rjack321 (and confirmed by @rob.mwpropane ), I decided to give it a try. It seems that many people are using the mixture and proportions recommended in...