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minimum water proximity to sweating
Am still new to sweating copper pipe, though I do pretty well when I know how to avoid situations less than ideal to solder in. My question is along those lines. How close can I get to a section of water filled pipe before there's too much heat draw and soldering becomes tricky?PHOTO OF PIPE SECTION
The male adapter pointed to by the green arrow is leaking from a crack in the solder. I plan to close off the balance valve and drain the boiler just enough to get air into the area around the leak. Because I hope to replace that leaking adapter with a union, I will be cutting the 4" section of 3/4" pipe right in the middle, which will mean I'll be soldering a mere 2" from the shut off balance valve which will be holding back the zone's water. I could drain the zone and avoid any potential problem altogether, but I'd like to avoid that if it really shouldn't pose a problem.