Get a bloke in

The Shed - - Street Art -

If you are in­tend­ing to use an old pres­sure ves­sel or fuel con­tainer for a project such as this, or are at all un­cer­tain of your own abil­ity to do this part of the project, take it to a com­pany that can do it for you. They will have ac­cess to in­ert gas to flood the con­tainer and re­move any oxy­gen be­fore cut­ting or drilling into it, so that it no longer presents a haz­ard.

Once the con­tainer has been opened to the ex­tent that it can no longer con­fine the ex­plo­sive gases that can build up dur­ing the cut­ting process, it is safe to work on to com­plete your project. The open­ing must be size­able — for ex­am­ple, just re­mov­ing the valve on an LPG bot­tle is not enough. The rate of gas ex­pan­sion if the vapour com­busts will ex­ceed the open­ing’s abil­ity to dis­si­pate it, with po­ten­tially dis­as­trous con­se­quences.

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