Many of us would have some point in time been faced with a issue with our plumbing system. If we have electrical bonding in bathrooms then that needs to adhere to strict regulations. For example, under the bathroom sink there should be a green and yellow bonding wire that is connected to a metal object which could become live if there was a electrical fault in the house. All items need to be connected back to a earthing connect. Nowadays plastic pushfit pipes and fittings mean there is no need for a earthing wire as plastic does not conduct electricity.