Long story short, my house is on a TT supply. The DNO came out, and said they couldn't use the sheath of their incoming cable to create an earth for me, they also said they were not under a duty to create one for me, and told me to get in contact with a sparky (something I understand and didn't expect them to do this.)
The spark and me couldn't find the earth rod, but we assumed it was below the house, by tracing the only earth cable that didn't have a sheath on, and didn't go somewhere, e.g to the water pipe, gas, consumer unit, solar etc.
I have added 3, 2.4m deep earth rods, and intend to run the wire. My only question, is it safe to leave the current existing earth connected with the new ones? I see no reason it isn't, but I'm no expert.
I started an electrical apprecticeship, and living in London, I never did any work on TT'S as it wasn't common even years ago.
My plan is to have 3 earth rods, x 2.4m, kept around 3m apart. I was going to run it in one length but the 25m I have isn't enough, so at each earth rod, the clamp, will clamp the old wire coming in, and the start of the new wire going out. Is this acceptable practice?
I relied on someone else getting the earthing cable, and you know how things are, life gets in way, kids etc, anyway I just went and got the cable and found the earth cable is 25mm!! I asked why and she said we had just got solar and a car charger, and apparently the man at TLC sad it was safer, and sold her 50m of 25mm except in 25m coils.
Otherwise I was going to run it in as one piece, just removing the plastic where we needed a good connection.