Quote Originally Posted by olderdan View Post
I agree on the many uses for these gas tanks, my recycling centre has dozens of them but when asked they are not allowed to let me buy a couple, (health and safety regs). How does that fit with true recycling.
They use & abuse H&S regs to stop such things mainly out of convenience, though covering ones arse should some fool try cutting one without venting and fully purging is probably a major driver in our litigious world. I've done well at such sites by asking those disposing before the cylinders left their car if I can have it, as soon as it touches the ground the site operator is responsible for it. In most parts of the world butane and propane cylinders are rented, the owners details are stamped and/or embossed, so modifying them is legally unacceptable or even theft, those making garden burners from them do get investigated by the major cylinder rental companies with prosecution the likely outcome https://www.calor.co.uk/news-and-vie...-gas-cylindersClick image for larger version. 

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Only unbranded cylinders, such as 'disposable' balloon gas ones, are viable legally, though H&S law does still apply. One of my job tasks at work is destroying disposable gas cylinders so they can go into the scrap bin, the procedure R.A.M.S. is many pages long...