re-solder joints


Postby heps » Sun Nov 01, 2009 4:36 pm

:( when soldering joints and the solder doest not take and you get a small leak how can you re-solder once you have turned the water on and discoverd you have a leak in the joint ??????
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Postby stoneyboy » Sun Nov 01, 2009 7:13 pm

heps,
You will have to drain down the pipe run and put in a new joint - reheating the joint is not generally successful.
end
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Postby rosebery » Sun Nov 01, 2009 7:51 pm

You don't - you cut the joint right out and do it again.

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Postby Skids » Sun Nov 01, 2009 8:32 pm

Hi Heps

Know its too late know, however next time dry pressure test any new pipework before filling with water.

Empty and thoroughly dry the section of pipework, vent if you can, try warming with a hair dryer, once dry add some flux (lead free) and re-solder, pressure test and if you still haven’t sealed it cut it out and start again.

Could just go to cut it out, but its always worth a try.

Best of luck

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Postby heps » Wed Nov 25, 2009 3:31 pm

how do you dry pressure test new pipework ??
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Postby rosebery » Wed Dec 02, 2009 10:30 pm

With a Dry Pressure Test Kit!

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Postby Steve the gas » Thu Dec 03, 2009 6:15 am

Err .... with air - google it
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Postby Cleaner » Sun Jan 17, 2010 5:54 am

where can i get pressure kit?
hardware shop?
or does anyone on this forum has one for sale?
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Postby htg engineer » Wed Jan 20, 2010 9:03 pm

You can re-solder joints as long as you get all the water out of the pipe/fitting.

The easiest way is to prevent it - make sure the pipe and fitting are clean - use wirewool to clean all pipe ends and inside fitting. Apply flux to fitting (apply to pipe if for gas) - make sure there's no water in the pipes.

Do that everytime - they very very rarely fail - no need to pressure test.

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