How to solder pipes with water running?

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jet sweater, it's a rubber plug at the end of a 12" stalk. you stick it in the pipe and turn it until the plug swells and seals, solder away then remove. Any decent plumber knows about these. it works if it's a straight shot. those gel caps aren't worth a shit! Chip
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This is Turtle.
I think Speed Jim got it with the loosing of the union at the water meter and drain all the leakage through the water meter.
TURTLE
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what' the joke?
get it fixed correctly. get the water company to repair it's valve at the curb. then replace all valves at the water meter or where ever at the beginning of the supply side tor your house.
if your in a rush. just after the leaky shut off. install an additional shut off valve, either use compression fittings or threaded fittings.
there is also a tool available that is on a long wire like string. at one end is a rubber ball, at the other end is a gun like handle that when squeezed cause the rubber ball end to expand. you insert this tool thru a ball valve and into the pipe . it stops slight trickles for enough time to allow sweating. a some times very useful tool. have one, forget the name.
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Oil and chemical companies have a bigger problem. The've got toxic, flamable stuff inside their pipes. Perhaps it's hundreds of feet to the next valves and they have to replace a valve or section of pipe. But, what to do with the junk that will be trapped in the section to be replaced or repaired?
There are companies that provide a freezing service. Two liquid nitrogen filled jackets are placed to isolate the damaged section and minimize the free liquid trapped in the work area. The frozen plugs act as temporary valves.
Sure it's a bit of trouble, but it is much cheaper than unloading the whole section.
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If yer talkin' about the curb stop, this is usually the responsibility of the utility company. And most utility companies frown upon home owners messing with this shutoff.
Call them and ask them to come out and replace the valve. Make sure that it won't cost you anything. In most places, its their responsibility to maintain this valve. Usually, everything on the OTHER side of the valve is the responsibility of the homeowner.
In my locale, besides the curb stop, you must have 2 shut-off valves inside the house...one on either side of the meter. Check with the water company as to their requirements. You may want to install a shutoff valve at the meter once they shut off the curb stop for you.
If you don't want to call them...and if the flow isn't very great...
You can disconnect the pipe on the house side of the meter...and install a shutoff valve between the meter and the house side. Just install a small nipple onto the meter...a valve onto that...and the other end of that valve to the existing piping. Get threaded valves/connections for as much as possible...compression for the rest.
If you don't want to do THAT...
Drill a 1/4" hole on the stand pipe...let it squirt into a bucket...do your soldering...cover the hole when done with a piece of rubber patch and a stainless steel hose clamp...or pipe repair clamp.
But...
You should ALREADY have a shutoff valve near where you want to do the soldering. If you don't, make sure you put one there.
And consider using plastic at the valve...with transitions fittings somewhere along the way if necessary.
Good luck.
Have a nice week...
Trent
What do you call a smart blonde? A golden retriever.
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