Thread 2938501

My mains shutoff valve is leaking and needs to be replaced. I am handy enough to solder in a new one but I'm not sure what to do with the bonding jumper, which would need to be moved in order to get access.
Website told me not to move it, but to put a new one on elsewhere and then disconnect the old one, but I don't feel up to that and don't have the required stuff. Is it safe to just disconnect it and move it further up the pipe, if I do it quickly? What about if I shut the power off at the main breaker first?
Is this a good time to actually call in a pro instead?

>>2938501 (OP)
That sounds like one of those “by the book” safety things that nobody would follow in a situation like yours. If you’re that worried, kill the power and water, solder via lantern like your great great grandpappy did, and then turn it all back on.

I may be an armchair sparky plumber, but that ground shouldn’t be doing much as long as no fucked up electrical equipment is running.

>>2938525
Yes I think you are right

>>2938525
So, it turns out you can just do things, like disconnect the ground coupling without even turning the power off, and nothing bad will happen.

>>2938501 (OP)
>>2938569
The meticulous thing to do would be to check the wire with a multimeter after you disconnect it to see if there is any leakage current/any voltage against ground. If there is, you have an electrical fault in your house, if there isn't, you can just disconnect the bond and reconnect it later. Normally that bond shouldn't be doing anything significant, it's just an added protection layer.

>>2938581
To clarify, you'd measure the disconnected bonding conductor against the metal pipes. This should show 0V or very very close to it.

>>2938581
Interesting, I will file that away for future use.
>>2938582
So you mean one terminal on the wire, one on the pipe?

>>2938608
Yeah, the point is to check if there was some minor current leak that wasn't enough to trip a breaker, but could still be enough to tickle you. But again, it'd be extremely rare to find a fault, because water pipes are generally grounding themselves (by going into soil, if they aren't plastic), water itself is also a shittier grounding conductor. Only that these are unreliable ground, so it's good practice/code to separately bond and ground the pipework. Tons of homes don't have this done and the inhabitants are mostly alive.

>>2938501 (OP)
Tons of places dont even have a ground to the water service even though they should.
You'll be fine disconnecting it for a sec.