I am running oil pipes under a gravel drive where people walk and cars drive. I was going to put the copper pipe inside some spare MDPE mains water pipe I've got so it should be well protected.
How shallow a trench could I get away with?
It's not (just) that I'm lazy, I'm also trying to avoid damaging some propane lines which also run through the same ground. I will have to cross them at some point. Hopefully they will be buried quite deep.
Cheers
Nick.