Must a metal kitchen sink have to be bonded to the water supply pipes if they are copper. Or is the physical connection of the tap to the sink adequate.
In the 15th Edition, it was deemed necessary to bond kitchen sinks to the pipework. The connection between sink and tap was often unreliable due to the presence of nylon spacers, washers and plumber's mate.
However, in the 16th, there is no mention of supplementary bonding in the kitchen. It is deemed dangerous to do so because of parallel earth paths.
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