I need to lay a oil feed pipe between the proposed site of the tank and the
oil boiler - yet to be decided but will be around 80,000 BTU. Length of the
run will be approx 40 feet total, with most above ground tacked along garage
wall with the last 15 feet or so dug into lawn and coming up next to house.
Only foot traffic on lawn.
Questions :
1) What diameter / spec should the pipe be ( plastic coated / sleeved as
well under ground in ? waste pipe? )
2) At what depth should the pipe be buried and should it be laid on sand /
sleeved in steel or would waste pipe do if e.g. bricks laid above for
protection from spades etc. ?

Thanks,

Nick