And that’s the reason tanks are to be removed from the boat for filling!
I’m quite sure the relief valve fully opens somewhere around 11-13 PSI. The operating pressure is much less than that, around 3-5 PSI when I tested one with several different motors one day. I doubt if they would survive at 50 PSI as the large flat bottom would probably blow out long before that.
This gives me an idea. Maybe I should hook up a donor tank to 200′ of air line and slowly raise the pressure with a regulator mounted at the compressor end and see just how much pressure it can take before something lets loose.
