A few days ago I went to a house which had no main earth and no main bonding. I have now installed the bonding and also an earth rod and managed to get a satisfactory Ra. I did have a couple of failed attempts at getting the earth rod in as I just hit rock (or at least something very hard) and it was a right pain to get the rod out again to relocate. I have a few questions.. 1. Is there generally builders rubble close to the house underground? If so how far out do you generally locate the rod from the side of the house? 2. Any tips for getting that rod through anything hard? I drilled down a bit (400mm) but there were still hard objects in the places that I failed to locate the rod in initially. Cheers.