I suppose these might be easier to drive into some soils but I bought a 3m length of 20mm copper water pipe from Focus (DIY) for about a fiver last year...that is a lot more contact area with the soi
I am told that an SDS drill is the way to put in earth rods. - Stewart G3YSX I suppose these might be easier to drive into some soils but I bought a 3m length of 20mm copper water pipe from Focus (DI