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Old 12-20-2011, 12:54 AM   #1
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Any trick to soldering pipes that won't dry


Just had the hardest time soldering anything ever. Is there any way to solder pipes that continue to have water draining into them?

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Old 12-20-2011, 12:56 AM   #2
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Any trick to soldering pipes that won't dry


Got to stop the water. Open as many faucets as possible and let the water drain. If the site is at the lowest point you just have to wait.

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Old 12-20-2011, 01:19 AM   #3
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Any trick to soldering pipes that won't dry


There is one trick that an older plumber told me about years ago..

If the water is down to just a few drips and I mean a few drips every 2-3 minutes ... White bread... take the crust off and make a ball out of the white part... tight ball and then stuff it up the pipe 4-5" if one can and get the joint soldered. Then when the water is turned back on use a faucet that has the screen removed and wait... the water pressure and wet will move the bread down the line...

It might work... have not tried it my self... but have heard it from a number of older plumbers that I know.
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Old 12-20-2011, 06:02 AM   #4
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Any trick to soldering pipes that won't dry


Some times ,when all else has failed,I will cut the pipe and install a compression shut off valve.

Before that---try--
The bread
an air compressor to blow out the water
Jet Swet Offficial Site
and the other methods mentioned above
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Old 12-20-2011, 06:45 AM   #5
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Any trick to soldering pipes that won't dry


Quote:
Originally Posted by Akpsdvan View Post
There is one trick that an older plumber told me about years ago..

If the water is down to just a few drips and I mean a few drips every 2-3 minutes ... White bread... take the crust off and make a ball out of the white part... tight ball and then stuff it up the pipe 4-5" if one can and get the joint soldered. Then when the water is turned back on use a faucet that has the screen removed and wait... the water pressure and wet will move the bread down the line...

It might work... have not tried it my self... but have heard it from a number of older plumbers that I know.
Ayuh,.... Agreed,... I've done it many, Many times...

The bread dissolves, 'n is pushed out, after the solderin' is done...
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Old 12-20-2011, 06:52 AM   #6
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Any trick to soldering pipes that won't dry


if the water is running slow..or dripping.....loosen meter connection let run into bucket as long as needed to finish soldering.....
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Old 12-20-2011, 10:31 AM   #7
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Any trick to soldering pipes that won't dry


Besides the bread trick once in awhile, I have stuck a shop vac hose over the open pipe end after letting it drain as much as possible. If you use your hand to close off the area between the hose end and the pipe, it really sucks the water out of the pipe. Get as much as you can out and then solder your connection quickly before it has a chance to build back up again. Don't forget to empty your shop vac and let it dry out.
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Old 12-20-2011, 01:38 PM   #8
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Any trick to soldering pipes that won't dry


The bread actually isn't a bad idea. I was using the torch to 'push' the water out from both sides - kind of worked but took forever, and the steam would condensate and leave everything a little wet.
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Old 12-20-2011, 02:09 PM   #9
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Any trick to soldering pipes that won't dry


Quote:
Originally Posted by Akpsdvan View Post
There is one trick that an older plumber told me about years ago..

If the water is down to just a few drips and I mean a few drips every 2-3 minutes ... White bread... take the crust off and make a ball out of the white part... tight ball and then stuff it up the pipe 4-5" if one can and get the joint soldered. Then when the water is turned back on use a faucet that has the screen removed and wait... the water pressure and wet will move the bread down the line...

It might work... have not tried it my self... but have heard it from a number of older plumbers that I know.
ive gotten a weird look from more than one customer over the years using that trick!
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Old 12-20-2011, 02:55 PM   #10
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Any trick to soldering pipes that won't dry


Yep....the bread works great......just make sure you push it as far back as possible.....

And....PLAIN WHITE BREAD......you don't want to be using that expensive whole grain stuff with seeds....

When I'm done, I usually turn on the water hose in the back to get the bread out that direction....good straight 3/4" line. That is assuming it's not a branch ckt....

If going to something like a facet....remove the aireator before you turn on the water.
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Old 12-20-2011, 04:42 PM   #11
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Any trick to soldering pipes that won't dry


Where i work they sometimes use a tank of CO2 to freeze one section of the pipe solid, then cut and do the work before it thaws.

Seems to work nicely, they can cut and replace water pipes in about 15 minutes with one guy re-spraying the frozen section every few minutes. Also means that water stays on for everybody else in the building.
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Old 12-20-2011, 04:56 PM   #12
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Any trick to soldering pipes that won't dry


I have one of these:



Called a "Jet Swet". a space age version of the white bread trick.

http://www.brenelle.com/

I bought mine used on eBay.
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Old 12-20-2011, 06:16 PM   #13
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Any trick to soldering pipes that won't dry


There are also magnetic cooling coils, you put them over the pipe upstream of the leak, freezes the pipe solid in a few minutes, when you are done soldering turn it off, ready to go.
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Old 12-21-2011, 05:17 PM   #14
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Any trick to soldering pipes that won't dry


Another vote for white bread! I've used this method more times than I can remember and it never fails. FYI: it's a good idea to do an initial flush out with at the closest fixture/location with any aerators/filters removed.
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Old 12-22-2011, 09:33 PM   #15
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Any trick to soldering pipes that won't dry


Quote:
Originally Posted by rjniles View Post
I have one of these:



Called a "Jet Swet". a space age version of the white bread trick.

http://www.brenelle.com/

I bought mine used on eBay.
Looks OK, might work pretty good in some circumstances but you have to have someplace to remove them after you solder so you're stuck putting in unions in many cases! I'll stick with white bread and it's also a lot cheaper!

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