In article . com,
F Murtz wrote:
I have a strange situation in my bathroom, all the copper water pipes
are bonded to earth externally but I sometimes get a tingle to taps when
standing in the shower, (About 5 volts measured from metal round drain
to taps)
I can only assume that when the house was built(on concrete slab) the
reo steel in the concrete was not bonded to earth which is a requirement
today

Is it a wet room? I'd not expect the metal drain to be connected to
anything other than a plastic waste pipe.

I'd be inclined to check the potential between your copper pipes and true
earth. I've be surprised if you could feel 5v.

--
*Sherlock Holmes never said "Elementary, my dear Watson" *

Dave Plowman London SW
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