scenario is i have a consumer unit at one end of the house, and at the other end (20m away going the route i'm taking which is around the outside of the house) is the water stop cock and 200mm away from that is the incoming gas. so i was planning on using 1 x 10mm to save on cable, i thought this was ok and within the regs as long as it's one continuous cable, but today somebody sewed a seed of doubt in my mind. i'd go to the van and look through the regs but i'm sat n the dark here keeping out the way of the trick or treaters and don't want to break cover!