C02 Cylinder ‘amnesty’…..i.e. return an empty to rightful owner!

[Rento]

Hi,

I remember reading a thread but can’t find it now that had info on how to have a co2 cylinder collected, no question asked and returned to the rightful owner. Has anyone any info?

I’ve got a mixed gas BOC cylinder that mysteriously landed in my garden that’s now empty and want to give it back.

Thanks

R