Earthing pipes in bathroom

[jon ccc]

Hello
does my upstairs bathroom toilet copper overflow pipe need to be earthed?
the cistern is 1970/80s plastic.

my toilet overflow pipe, and the toilet inlet pipe are both copper.
as seen in the photo, an earth cable is attached from the overflow pipe to the inlet pipe.
[not in the photo] and then another earth cable is attached from the inlet pipe to the radiator

can i remove the ugly looking earth cable connecting the overflow pipe to the inlet pipe?
does that overflow pipe need to be earthed?

 

[flameport]

Does your fusebox / consumer unit have an RCD which covers all of the circuits?
Post a picture of it and the equipment nearby if unsure.

 

[Nige F]

can i remove the ugly looking earth cable connecting the overflow pipe to the inlet pipe?
]

I'd remove the whole overflow pipe that's been pulled over to the cistern and bodged in when that placcy cistern replaced the original ceramic one - fit a flush valve kit that uses the handle hole for a push button . And has internal overflow, showing in the pan when it overflows- and put a stopper in the old overflow hole. And turn those supporting brackets up the other way.

 

[John D v2.0]

No I very much doubt it needs bonding. I presume it just goes outside and not into some cast iron soil stack or anything?
You can find out by disconnecting the bonding edit: after turning the power off! and checking the resistance to the main earth terminal. If it's high, I forget but it's over tens of kilohms, then it's the proverbial metal spoon and bonding it actually increases the risk slightly. The idea is to limit any fault currents that might pass through you to earth to a low enough value to avoid harm.
As others have mentioned, if you have RCD protection on all circuits then you needn't have any bonding in the bathroom as the RCD will limit the current instead.