Soldering but can't get pipe dry

lifesupport4uMay 4, 2014

One of the shut off valves for my sprinklers cracked. I am soldering in a new one but I cannot get the pipe dry.

I read you can use bread and shove it in the pipe but I am concerned this will push a chunk of bread into my vacuum breaker????

Help. Thanks

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snoonyb

Use the cheapest white bread.
Do not use wheat, to much oil.
Open the vacuum breaker, remove the diaphragm and wash the bread through.

    Bookmark   May 5, 2014 at 2:17AM
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klem1

OMG ! You all obivously haven't heard what Klem says about "I Herd and Tha Syad",so here you are. Both lie a lot and you shouldn't believe everything they say.
Plumbers NEVER give away trade secrets but delight in blowing smoke up unsuspecting diyers.

    Bookmark   May 5, 2014 at 5:52PM
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homebound

If it's not the lowest point, open a lower valve (or many) and let that drip. Or blow it out with compressed air from an open valve above. Then work fast.

    Bookmark   May 5, 2014 at 7:28PM
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lifesupport4u

Ok, it worked for the faucet. The next project requires me to put in a "T" and both ends will be at freeze proof spigots. So how can I do that without blowing bread into the spigots?

I am thinking about sweating it all except using a "shark bite" for that tee???

    Bookmark   May 5, 2014 at 11:42PM
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jakethewonderdog

A trick I've used plenty of times is vacuuming out the water pipe with a wet vac.

It works if you can get an air break into the line (say by opening a faucet someplace).

By the time the line fills back up with water, I have the joint soldered.

I've never used the bread trick - although I've heard about it.

BTW: This is why God made ball valves - for positive shut off years after they've been installed. Clearly someone else was responsible for gate valves - quite possibly my ex.

    Bookmark   May 6, 2014 at 8:48AM
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snoonyb

"quite possibly my ex."

And locks on gates.

The bread simply dissolves.

    Bookmark   May 6, 2014 at 9:41AM
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padd123

TAKE A SMALER DIA PIPE WRAP ELEC TAPE AROUND COPOER PIPE TILL IT FITS SNUG PUSH IT IN A FEW INCHES AS YOU SOLDER THE WATER WILL LEAVE THROUGH THE OTHER PIPE THIS GIVES YOU TIME TO REPAIR VALIVE

    Bookmark   May 11, 2014 at 1:29PM
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