Indeed. I wouldn't expect second-hand bathwater to be all that pure, but it isn't correct to say that water is highly conductive when the opposite is true.
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Water main earth
- Thread starter loziv
- Start date
What "opposite"? Do you mean when the water is 'pure'? If so, I think everyone is agreed that totally 'pure' water is almost completely non-conductive. However, no tapwater, or water that has come out of the ground, is 'pure'.
Kind Regards, John
My point is that it isn't the water which is conductive - it is the impurities. So to say water is highly conductive is essentially nonsense.
Do we have to?that's before one even considers any other 'body fluids'.
True, but that's a bit pedantic - "tap water" (which, even if not explicitly stated, is obviously what we've been talking about) is not just water - it is "water+impurities", and that is conductive.
Kind Regards, John
Well I have tested the water in my location (may I add, I will admit water quality will differ in the many regions of the UK) But bear in mind, we are talking about potable water, with regards to the topic. Not used or soiled bath water. My test show using that using two probes into a full bath of potable water, that there is no continuity value measured in my water. The area quality in my location is:
Water hardness type: Soft
Water hardness average: 19.5mg/l calcium
Water hardness type: Soft
Water hardness average: 19.5mg/l calcium
The surface area of the probe, the distance between them and the applied test voltage will all affect the result.
What do you mean by "no continuity value measured"? What were you measuring it with and what was the highest resistance it could display?
Kind Regards, John
That's roughly what I would have expected - hence my question to PBoD.
Kind Regards, John
How far apart?
About 40cm. Average water depth about 8cm. Basin approx 50cm x 23cm at the water surface
Is nobody else concerned with the question as to whether there is bonding in place on the internal pipework?
As this is a new supply location, we might assume that it's still in place at wherever the old supply entered the house, but should be verified.
As this is a new supply location, we might assume that it's still in place at wherever the old supply entered the house, but should be verified.
Why do you feel that internal pipework needs bonding? Were it not for the almost inevitable 'incidental' connections from pipework to earth (CH components, immersions etc.) it would arguably be safer not to bond/earth internal pipework, when the incoming supply was in plastic, wouldn't it?
Kind Regards, John
Not when you have metallic pipework extending throughout the house between different locations. Would you really want, say, a damaged kettle flex draped over a kitchen tap to leave all the pipework and taps in the bathroom live?
Besides, as you say there are the inevitable "incidental" paths to earth any with copper piping running all around a house (not to mention probably direct connections via an immersion heater feed etc.), which would require an enormous amount of care and effort to prevent.
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