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Old 02-23-2009, 10:10 AM   #16
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Solder not working it's way to where I need it.


If you dilly dally too long or if you got the pipe too hot the flux will have boiled away and the surfaces of the pipe inside will have started to oxidize. Now the solder won't go in and stick. Your best choice is to undo the pipes, sand the ends again, and flux again. Part of the mating surfaces may have been coated with solder by now and you will have to heat up the pipes prior to rejoining them to get them to fit together again.

A common mistake is, after seeing the solder not soak in, to just cover the visible part of the joint with solder and call it a day. Then a year later water hammer cracked the surface of the solder and water leaks between the mating surfaces inside the joint that the solder never soaked into.

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Old 02-23-2009, 10:32 AM   #17
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Solder not working it's way to where I need it.


"thekctermite";

I owe you a beer. That bread trick...did the trick. I was able to kep the pipe bone dry long enough for me to re-ream, re-flux, and re-solder that side of the connection. It looks and works great (knock on wood). And the bread dissolved like you said. THANKS!!!
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Old 02-23-2009, 10:34 AM   #18
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Solder not working it's way to where I need it.


Gravity plays a big part. If you are trying to solder on the first story, use an outside faucet as a drain. You need to drain lower than your work area.
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Old 02-23-2009, 11:43 AM   #19
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Solder not working it's way to where I need it.


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"thekctermite";

I owe you a beer. That bread trick...did the trick. I was able to kep the pipe bone dry long enough for me to re-ream, re-flux, and re-solder that side of the connection. It looks and works great (knock on wood). And the bread dissolved like you said. THANKS!!!
Glad to hear it worked out. That trick sure raises peoples' eyebrows and they definately question your credibility when you're jamming bread into their pipes! But it does work.
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Old 02-23-2009, 12:39 PM   #20
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Solder not working it's way to where I need it.


If your on the ground floor soldering make sure you open any faucets on the second floor if there is one and open another below the work area. if those shut offs are holding, your water could be coming from those pipes on the second floor if you didn't open the faucet on the higher floor. BOB
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Old 02-23-2009, 03:37 PM   #21
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Solder not working it's way to where I need it.


I used bread one time almost twenty years ago. It's a DIY'er trick but can cause major problems. I'm glad it worked for you though, hope it stays working. Run all your faucets and flush your toilets to test.
A simple tool called a "jet swet" would have solved the problem instantly, without the risk of using bread.
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Old 02-23-2009, 03:53 PM   #22
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Solder not working it's way to where I need it.


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I used bread one time almost twenty years ago. It's a DIY'er trick but can cause major problems. I'm glad it worked for you though, hope it stays working. Run all your faucets and flush your toilets to test.
A simple tool called a "jet swet" would have solved the problem instantly, without the risk of using bread.
What kind of problems/risks could it possibly have? The bread pretty much instantly liquifies and will evacuate even the most restrictive valve or strainer in a matter of seconds. If wheat bread was used I can see that it would be a problem because the seeds would get caught.

I've done it well over 100 times and never once had any sort of problem. It may be a good DIYer trick, but I know a lot of plumbing pros that use and recommend it...That's how I learned it years ago.

The Jet Swet is a cool product but at over $40 per pipe size it isn't something that most DIYers are going to invest in.
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Old 02-24-2009, 05:22 AM   #23
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Solder not working it's way to where I need it.


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Solder melts at around 400 degrees. If you hit 700 degrees
You know it was never getting that hot. It was around 70.0 degrees I was misreading the thermometer.
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Old 02-24-2009, 05:51 AM   #24
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Solder not working it's way to where I need it.


you may have a worn out seat or washer on your main water valve you can try using a paair of channel locks on the valve handle to get it to turn off tighter just dont go nuts maybe youll get about an eigth of a turn and that may do it. otherwise youll have to go to whereever your main shuts off at the street and turn it off there. if you havent seen it yet, theres a good how to solder copper pipes in the how to section of the forums on the main page


sorry i didnt realize there was a second page to this thread when i replied glad you got it taken care of

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Old 02-24-2009, 09:05 AM   #25
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Solder not working it's way to where I need it.


Those jet swet look pretty nice but how do you solder both sides of your joint? If you are putting a coupling or any other fitting between two lengths of pipe it seems like you could solder the fitting to the old section of pipe using the jet swet but how do you stop the water from entering while soldering the new section of pipe onto the fitting?
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Old 02-24-2009, 03:25 PM   #26
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Solder not working it's way to where I need it.


The Bread idea in the pipe really does work, it dissolves as soon as you turn the water back on.

Now as for the solder not flowing:

1st: Take a look at your can of flux and make sure it says "Soldering Flux".

I did this once by mistake and at home depot and lowes they have 2 types of flux sitting right next to each other. The second I believe is called tinning flux or something like that and you wont get solder to flow into the joint with it.

2nd: Throw away that cheap micro torch and get your self a good propane or acetylene torch.

Sand and flux both the pipe and fitting good, get the joint cherry, and touch the solder to it and it should flow clean around the joint. Ez squeezy

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