In reply to tjin:
> Strange, i never had such issue. Not with normal canister; new, old and scavanged ones, nor with cheap puncture canister i use with a adapter. Don't think it;s that commen.
From being into maintaining bikes and reading bike forums, it seems there can be 101 things which are common for other people which oneself doesn't encounter.
I find it can be handy to absorb these nuggets just in case, something happens and the brain goes 'Oh yeah, I read about that'...
Post edited at 14:33