Hi , i have a bonding strap just below my mains water tap where it comes in under the kitchen sink ( the other end of the earth disappears behind the wall , so i can't tell if it is connected to anything) ,but when i look at my mains earth just below my consumer unit i can only see the heavier earth cable going into the C.U. & there is a thinner one going to a radiator copper pipe bonding strap the radiator sits just near C.U. cupboard , ( i don't think is needed )
but i can't see the earth cable which i believe should come from mains water strap to this MET
please see photo
but i can't see the earth cable which i believe should come from mains water strap to this MET
please see photo