Can anyone give me some advice on the following... I am in the process of installing an electric shower at home and I have had a couple of conflicting opinions about what earth cabling is needed. The shower is a 9.8Kw model and I have run some 10mm T+E to the bathroom already (Mostly surface clipped / under floorboards, with the last metre to be run down the wall underneath the tiles if that makes any difference?) While searching the forums so far, I cannot find a definate answer to the following... Do I need (Or is it strongly recommended) to run a seperate earth cable back to the fusebox and if so, what size should the cable be? So far 1 electrician has informed me that I should run a seperate earth cable back, while another says that the earth in the T+E will be suitable. As you can probably tell, I am not an electrician, so plain worded (And simple to understand!) replies would be most appreciated! Thanks in advance.