Can You Just Solder A Cut In A Copper Pipe? - Plumbing - Contractor Talk

Can You Just Solder A Cut In A Copper Pipe?

 
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Old 05-16-2019, 05:31 AM   #1
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Can You Just Solder A Cut In A Copper Pipe?


plumbers showed up to clients house yesterday
one was a girl about 25 . said she was a plumber .

they had to re-do the drain under a double sink.
she was so hesitant to cut the backing off the cabinet. i told her don`t worry i`ll replace it ,
short story i jumped in and cut it out with my sawsall , and hit one of the pipes.
shut the water off , quick.( my defense , there was a disposal , dishwasher lines, and water filter , so hard to maneuver a full sawsall. and i didn`t have a blade for my multi-tool!!)
she said she was gonna just solder the pipe ( not cut , and add a slip coupling )
will that hold in the long -run ?
just didn`t like her style.
constantly calling her husband , and asked him how to do this and that
and charging the client $100 for her , and an apprentice who seemed to know more than her, but wouldn't let him do much because of ego.


this is a new remodeled kitchen , i want to make sure this leak will hold , ( great client )


will it hold , or should i demand they cut , and add a coupling ?
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Old 05-16-2019, 05:50 AM   #2
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Re: Can You Just Solder A Cut In A Copper Pipe?


Did you walk out the door with it that way?

If so, wait a couple years, then check back in with customer. If still no leak, I'd let it go.

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Old 05-16-2019, 06:02 AM   #3
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Re: Can You Just Solder A Cut In A Copper Pipe?


wow.
no offense , but i don`t like that philosophy at all.
i want 'whats the right way to repair a leak?"'.
not a " i hope it holds " repair.

nice , nice client , they just bought the house, just put in thousands to remodel. just moving in
floors are wood.
don`t want a suprise
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Old 05-16-2019, 06:02 AM   #4
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Re: Can You Just Solder A Cut In A Copper Pipe?


If the coupling is over the cut.

I’m not sure I understand what you’re describing
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Old 05-16-2019, 06:10 AM   #5
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Re: Can You Just Solder A Cut In A Copper Pipe?


I did it on a drain pipe...

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Old 05-16-2019, 06:20 AM   #6
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
Originally Posted by SmallTownGuy View Post
Did you walk out the door with it that way?

If so, wait a couple years, then check back in with customer. If still no leak, I'd let it go.
Quote:
Originally Posted by woodspike View Post
wow.
no offense , but i don`t like that philosophy at all.
i want 'whats the right way to repair a leak?"'.
not a " i hope it holds " repair.

nice , nice client , they just bought the house, just put in thousands to remodel. just moving in
floors are wood.
don`t want a suprise
I am mocking you. You walked out the door with it that way, knowing in your gut YOU weren't happy with the process, and now you are here, asking us to salve your soul with some bull**** answer.

Answer this: What is the difference between waiting and hoping one day or 2 years?

Nothing - not one damned thing.
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Old 05-16-2019, 06:20 AM   #7
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Re: Can You Just Solder A Cut In A Copper Pipe?


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If the coupling is over the cut.

I’m not sure I understand what you’re describing
no coupling , she just soldered over the sawsall cut
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Old 05-16-2019, 07:03 AM   #8
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
Originally Posted by woodspike View Post
no coupling , she just soldered over the sawsall cut
That probably won't hold by itself, but a slip coupling would have. Even a fernco over the cut would have been good. Did you clip the top of the pipe, or near the bottom? Sure it was just the drain?

Last edited by MarkJames; 05-16-2019 at 07:07 AM.
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Old 05-16-2019, 07:31 AM   #9
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Re: Can You Just Solder A Cut In A Copper Pipe?


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Originally Posted by MarkJames View Post
That probably won't hold by itself, but a slip coupling would have. Even a fernco over the cut would have been good. Did you clip the top of the pipe, or near the bottom? Sure it was just the drain?
It was a supply line, he had to “shut the water off quick”.
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Old 05-16-2019, 07:35 AM   #10
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
Originally Posted by Big Johnson View Post
It was a supply line, he had to “shut the water off quick”.
Figured as much, but he mentioned drain line, too...which wouldn't make sense anyway since it's not the 60's anymore. (My folks have all copper drains in their house, up in philly)

And that confirms the plumber lady was really not up to par, so maybe I was trying to give her the benefit of the doubt.
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Old 05-16-2019, 07:36 AM   #11
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Re: Can You Just Solder A Cut In A Copper Pipe?


If she got a good bond and made it thick enough it'll likely hold for a long time. It's not the right way to do it. As others have said, cut the pipe the rest of the way and reconnect it with a slip coupling.
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Old 05-16-2019, 07:38 AM   #12
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Re: Can You Just Solder A Cut In A Copper Pipe?


Put a saddle clamp on it. The clamp won't be holding back pressure, just supporting that area of the pipe.


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Old 05-16-2019, 07:39 AM   #13
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
Originally Posted by Leo G View Post
If she got a good bond and made it thick enough it'll likely hold for a long time. It's not the right way to do it. As others have said, cut the pipe the rest of the way and reconnect it with a slip coupling.
How would you clean the cut surfaces sufficiently, prior to flux?
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Old 05-16-2019, 07:40 AM   #14
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Re: Can You Just Solder A Cut In A Copper Pipe?


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How would you clean the cut surfaces sufficiently, prior to flux?
Scuff the out side of the pipe.

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Old 05-16-2019, 07:43 AM   #15
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
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How would you clean the cut surfaces sufficiently, prior to flux?
Quote:
Originally Posted by tjbnwi View Post
Scuff the out side of the pipe.

Tom
Just like you would normally. emery cloth, sand paper, wire brush. Whatever you do just make sure it's clean. Probably easier to do while the pipe is still together. Clean it, cut it, flux it, install the fitting, solder it.
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Old 05-16-2019, 07:48 AM   #16
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Re: Can You Just Solder A Cut In A Copper Pipe?


Here you go

https://www.flexsealproducts.com/product/flex-tape/


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Old 05-16-2019, 07:49 AM   #17
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Re: Can You Just Solder A Cut In A Copper Pipe?


You convinced me that it'll hold for a while, but if it creates a bump of solder inside the pipe, then it'll probably have issues further down the road.

Did you ever watch those vids where they bisect pipe to show how pinholes form downstream from a burr left in a joint? It creates turbulence and wears the inside of the copper, leading to pinholes.
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Old 05-16-2019, 07:55 AM   #18
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Re: Can You Just Solder A Cut In A Copper Pipe?


Hey guys i never mentioned a drain line.
" Inner 10 "
This was a basic 1/2 inch copper line.
I called her boss and told him if he won't put in writing that she just soldered it, and if he won't guarantee it'll hold up as good as putting a coupling in he needs to change it.
Hey. Plumbers charging$100 an hour should know their job and i shouldnt be having to hunt for the answers.
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Old 05-16-2019, 07:56 AM   #19
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Re: Can You Just Solder A Cut In A Copper Pipe?


meant to say, inner 10 was the one who mentioned the drain line
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Old 05-16-2019, 07:57 AM   #20
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Re: Can You Just Solder A Cut In A Copper Pipe?


Quote:
Originally Posted by woodspike View Post
Hey guys i never mentioned a drain line.
" Inner 10 "
This was a basic 1/2 inch copper line.
I called her boss and told him if he won't put in writing that she just soldered it, and if he won't guarantee it'll hold up as good as putting a coupling in he needs to change it.
Hey. Plumbers charging$100 an hour should know their job and i shouldnt be having to hunt for the answers.
Was she cute?

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