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-   -   How to sweat copper pipe (http://www.firearmstalk.com/forums/f35/how-sweat-copper-pipe-51238/)

KidsWithGuns 11-06-2011 02:24 AM

How to sweat copper pipe
 
First step: is to take a piece of sandcloth and clean the end of pipe

Second step: is to ream the inside of the end you just cleaned with sandcloth or a reaming tool.

Third step: is to take ur copper fitting and clean the inside of the hubs with sandcloth.

Fourth step: is to apply flux to ur clean ends of pipe and hubs then slide hub on to pipe.

Fifth step: apply torch flame to the hub of the fitting (not the pipe) and with other hand take ur solder and apply tip to the seam of fitting. It takes a couple sec for the solder to flow all away around the hub.

Six step: take a wet rag to ur pipe after u finish with ur sweat. Then when the pipe is cooled wipe all the existing flux off and check fitting to make sure the solder took all away around the fitting

aztman 11-06-2011 05:10 AM

first step remove all water.

fmj 11-06-2011 12:13 PM

Use a DRY rag to wipe after solder drips....it makes for neater more professional appearance/finished product.

Chainfire 11-06-2011 09:42 PM

Quote:

Originally Posted by KidsWithGuns (Post 620388)
First step: is to take a piece of sandcloth and clean the end of pipe

Second step: is to ream the inside of the end you just cleaned with sandcloth or a reaming tool.

Third step: is to take ur copper fitting and clean the inside of the hubs with sandcloth.

Fourth step: is to apply flux to ur clean ends of pipe and hubs then slide hub on to pipe.

Fifth step: apply torch flame to the hub of the fitting (not the pipe) and with other hand take ur solder and apply tip to the seam of fitting. It takes a couple sec for the solder to flow all away around the hub.

Six step: take a wet rag to ur pipe after u finish with ur sweat. Then when the pipe is cooled wipe all the existing flux off and check fitting to make sure the solder took all away around the fitting

I am a master plumber and could not have said it better. The only thing I would add, is that plumbing solder and flux is not the same as electrical solder, and you will never solder a copper pipe with any water in it.

KidsWithGuns 11-06-2011 11:14 PM

Thank you! I'm a fourth year plumbing apprentice about to take my IL plumbing test to get my license.

fmj 11-06-2011 11:20 PM

Quote:

Originally Posted by KidsWithGuns (Post 621049)
Thank you! I'm a fourth year plumbing apprentice about to take my IL plumbing test to get my license.


Good luck!

canebrake 11-06-2011 11:30 PM

I use Pex SharkBite Fittings. ;)

partdeux 11-06-2011 11:36 PM

Quote:

Originally Posted by Chainfire (Post 620949)
you will never solder a copper pipe with any water in it.

white bread (no crust) can be used as a temp water absorber.

Strangest leak I ever repaired, in the middle of a pipe. 20 year old house, leak right in the middle of a pipe. Piece of debris in the pipe.

Luckiest repair I ever made, drain pipe going into a cast iron stack, very little to grab on to, but it easily turned. What was even better, I had planned to replace that particular cabinet anyway, and the leak was in the wall behind the cabinet

superc 11-08-2011 04:22 AM

You left out,
Apply the flame to the backside of the pipe and put the solder in at the front. :)

doctherock 11-08-2011 04:41 AM

Great post here, I have soldered my share of electrical fittings but never any pipe and my house being builit in 1925 means lots of copper fittings.


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