07:12AM | 12/18/02
Member Since: 03/18/02
3 lifetime posts
Hi - I have a small leak (drip, drip, drip) coming from a soldered joint between an elbow and a staight pipe off of my boiler. Is there some kind of goop I can use to seal the joint or do I have to hire someone to cut the pipes and re-solder new ones in?


Jim D

11:43PM | 12/18/02
Member Since: 01/06/01
345 lifetime posts
Ellen - hi, there's stuff I've seen advertised that you can spray on and supposedly stop leaks with. I've never tried it personally. All you should need is for someone to resolder the joint that's leaking. The water in the pipe will need to be turned off/drained first. Then, whoever does it will need a torch that gets hot enough to do the job right. When the joint's sufficiently heated, the solder can be applied and the joint will "soak up" the solder nicely. It can be a 5-minute job if the person who does it has the right torch and has done it before.

(I encountered that doing a similar repair for my mother-in-law...the blue-colored propane torch kits at H-D and Lowe's don't get quite hot enough. After getting some advice from a retired plumber, I bought one of the yellow-colored propane bottles. It provided the right amount of heat. It's a different gas than what's in the normal blue-colored bottles.)

I hope this helps some. Happy Holidays!

Jim D/Heathsville, VA


01:56AM | 12/19/02
Member Since: 11/17/02
50 lifetime posts
Fixing the leak won't be that tough, if you prepare your joint properly and use MAPP gas and a map gas torch tip. Map gas raises the temperature as high as 1700 degrees. Propane your lucky to get 500. You will have to pull the joint apart and use new fittings. Make sure you clean with sandcloth and a brush the outside of the pipe and the inside of the fitting. Then use self tinning flux to reinstall the parts together. Flux the inside of the fitting and the outside of the pipe. Once you begin soldering, apply the solder till it starts flowing. Solder flows into the pipe by capilary action, so put the torch on the opposit side of the fitting from where you want to solder and the solder will flow into the joint. Be carefull not to over heat the joint or you will burn the flux and the solder will not stick to the surface where the solder has burned. Hold the torch on the fitting hub with the white part of the flame about 1/2 inch from the surface of the copper. If the fitting is large, move the torch back and forth to spread the heat.
Good Luck
Plumbing Prof
Anoka Hennipin Tech College


01:53PM | 12/19/02
Member Since: 06/03/01
327 lifetime posts
Raymond (Prof) hit it on the head but forgot to mention one VERY IMPORTANT step. Drain all the water from the line and leave a faucet or two open to allow any steam to escape. If you heat that pipe with water in it, you may experience burst pipes and possible scalding steam.


02:25PM | 01/15/03
Member Since: 12/23/02
32 lifetime posts
i recently had a similar problem..i purchased this stuf called "goop", but there's 2 kinds ,make sure you get the one that says "plumbing".. it applies easily,let it dry 24 hours and your leak is fixed...i used it and so far so good...oh ya it's also pretty cheap..about $5 a tube.


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