Bathroom Bonding

[Jakg]

Replacing a (recently fitted) bathroom.

The incoming supply to the house is earthed, however there is no continuity between the (exposed copper) pipes in the bathroom and earth. I suspect that there is a plastic joint somewhere between the two I cannot see.

There is no bonding in the bathroom at present.

I am planning on bonding the hot & cold water supply in the bathroom to each other.

Do I also need to then bond that to earth? There is an accessible socket and light circuit in the next room I could use, but going back to the CU is unlikely to be easy.

EDIT - All circuits are RCD protected (dual RCD board).

 

[EFLImpudence]

The incoming supply to the house is earthed,

Bonded - because it is earthed.

however there is no continuity between the (exposed copper) pipes in the bathroom and earth. I suspect that there is a plastic joint somewhere between the two I cannot see.

If that is the case then you should NOT bond them.

There is no bonding in the bathroom at present.

As above - then that is how it should be.

I am planning on bonding the hot & cold water supply in the bathroom to each other.

As above - if neither is connected to earth anywhere then it will have no effect and do nothing.

Do I also need to then bond that to earth?

NO.

There is an accessible socket and light circuit in the next room I could use, but going back to the CU is unlikely to be easy.

Irrelevant.

EDIT - All circuits are RCD protected (dual RCD board).

Then you probably would not need supplementary bonding anyway, even if your pipes were earthed.


Earthing is not a good thing in itself; it is a necessary evil.
It would be better if nothing had to be earthed.

 

[John D v2.0]

All circuits are RCD protected (dual RCD board).

you don't need bonding in your bathroom, but you should first check that the main bonding between the supplier earth, the gas pipe, and the incoming cold water pipe if metal is all present and connected.

 

[Jakg]

you don't need bonding in your bathroom, but you should first check that the main bonding between the supplier earth, the gas pipe, and the incoming cold water pipe if metal is all present and connected.

No gas, but I did check the resistance using a multimeter.

Thanks for the advice - looks like I can save myself some work.