Just work in an open space or in your workshop with all the doors open. Methane, unlike LPG, is lighter than air. It won't sit around in inspection-pits etc etc like LPG. Don't allow anyone to touch a workshop light-switch. Done.
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Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."]
Last edited by CNGBiFuel; Aug 21st, 2020 at 15:13.
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