Burst disc for HP tanks

[ScubaDiveandTravel]

I think installing shims in your dive tank is your business, but I think it is important to let the dive shop know if they are shimmed. If a shop believes it is dangerous to fill these tanks, that is their right and I don't think it should be kept secret from them. I personally don't have a problem filling tanks without a burst disc, but that's personal preference. Like DiverDan said, the real reason burst discs exist is for extrodinary circumstances such as fire. As for DRE's comment about the O ring failing before the tank will explode, that is innacurate. If that was true, there would never be tank explosions. Unfortunately the burst discs rarely save lives in the dive industry, instead they are a pain in the butt because they often burst at normal working pressures. Just be safe guy's and again, please be honest with your dive shop.

Happy Diving,
Richard