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-   -   Risk of Explosion When Soldering Drain Pipe? (http://www.houserepairtalk.com/f33/risk-explosion-when-soldering-drain-pipe-2970/)

travelover 10-20-2007 08:10 PM

Risk of Explosion When Soldering Drain Pipe?
 
My house, built in 1966, has all copper plumbing, including drain pipes. I have discovered a dripping drain pipe connection that takes the bath sink waste water away (in the wall, just downstream from the J trap).

If I use a torch to take this apart and resolder it, am I risking an explosion from the sewer gases in the drain pipe? I'm on a septic system, if that is pertinent.

Thanks in advance.

inspectorD 10-21-2007 08:08 PM

Boooooom
 
Just kidding...the gas should not build up...that's what a vent is for . Although better safe than sorry...blow some compressed air through the lines if you need to and open the tank cover if you really are not sure.

I have never heard of it...but stranger things have happened.:eek:

travelover 10-22-2007 03:18 PM

Just a follow up - I sweated in a new fitting with no problems. I gave it the sniff test and decided the risk was minimal. I'm still surprised the copper pipe has a hole corroded in it. Maybe too much drain cleaner?

Thanks for the feedback and suggestions.

glennjanie 10-22-2007 04:39 PM

Hey Travelover:
I think we have all been disappointed with copper. It not only corrodes through in the DWV but it also wears through on the back side of ells.
Glenn


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