Two water mains/ two bonds??

[KNIPEX]

Hi all.

im working in a small little building which has toilets/meeting rms/office kitchen etc, the water main comes in at the kitchen, ive pulled a cable in to bond this

however while in the toilets today i noticed another water main coming into the same building so it has 2, however i do not have a bond to this as ive only know just seen it.

this is a new one on me 2 water mains in the same small building, everything is cross bonded at the boilor now and if i cross bond in the toilets aswell will this be acceptable as the other water bond would therfore be cross bonded.

thanks in advance for your help.

 

[Tester Steve]

Hi Knipex,

You will need to bond this as well, it's another incoming service, just as if there was gas coming in etc.

Steve.

 

[KNIPEX]

oh no, thats pretty impossible now, just so strange that it has 2 water supplies coming in.

i can cross bond it, but getting a main bond to it is pretty much a nightmare.

anyone else got any ideas please?

 

[Sintra]

It requires a main bond no other option.

 

[Davey101]

You sure its not just a feed to an outside tap, or another building?

 

[KNIPEX]

no mate it feeds the water pipes in the toilet area only. such a stupid place having two water mains coming into the same building ffs.

 

[Johno]

yeah, have you actually tested what each stop tap does?

 

[Johno]

you got there first!

 

[bugsy]

Call for the KANGO!

 

[Johno]

just pretend you didn't know about it. lol

 

[Johno]

Don't you lot tell me that I was the only one thinking that.

 

[Davey101]

Don't you lot tell me that I was the only one thinking that.

lol, I dont think everyone is as honest as you

Silly question, but I persume the toiles have electrical accessories in them?

 

[sparks1234]

Got lots of mini trunking?

 

[Spudnik]

Surely it is one water main underground, rising to feed the loos, and then back off underground to feed the kitchen?

 

[Sintra]

Good call Jason.

In that case you could remove main bond and check continuity between the 2 incoming pipes.

If you have no or poor continuity then you would have to install second main bond.

 

[KNIPEX]

Yes mate it is however they have seperate stop ****s on each one.

this isnt looking good atm, really wasnt the answer that i wanted.

 

[Spudnik]

Yes mate it is however they have seperate stop ****s on each one.

Each what?

Do the continuity test between the stop taps first.

You could be worrying over nothing.

 

[Tester Steve]

Surely it is one water main underground, rising to feed the loos, and then back off underground to feed the kitchen?

Just as its a rising main, feeding one house, then back off to feed another? One bonding for the whole street? I stll say it needs bonding!!

Steve.

 

[mogga]

if in doubt BOND it out if theres structural steelwork you could bond to that n save running another from the meb so long as the steelwork is bonded

 

[WayneL]

It's an incomming service, it's an extraneous-conductive-part, it will be introducing earth potential - It HAS to be bonded back to the MET.
Can't believe some of the posts I've read in reply to this