Hi, Ive got a nightmare job on tomorrow and would appreciate any advice from any of you experienced guys. The customer has noisy vibrating internal pipework when they open any taps in the house. Ive tried fitting a mini shock arrestor on the cold mains to stop this but its still persisting. It seems to be coming from the internal mains stop tap. A very old one on lead pipe(the large ones with a chunky handle). I have a dilema. The pipework is a bit mangled below the stop tap so I'm not confident of a good connection with a lead lock. But I will have little chance of removing all water to do a lead/copper soldered joint. Once that lead pipe is cut there is no turning back. And to add to the pressure the stop tap in the street cuts off the water to 3 houses. Not the kind of job you want on a friday, or any other day for that matter. Anyone have any suggestions that I might of overlooked for the remedy of this fault? I have wondered if I could turn off the noisy stop tap. Do a soldered joint above with a new stop tap on copper. Then remove the guts of the old tap and plug it off (if plugs that size are available?). Might have to make my excuses and abandon it all together I suspect. Any advise is massively appreciated.