Bsperr
Member
I recently soldered in a tee to my 3/4 copper line to install an expansion tank to go along with a PRV. The joint looks filled, but there is not a bead of solder along the outside of the joint. I've been checking periodically for leaks, and every couple days I see a minute trace of water at the bottom of the joint. It's not beading or dripping, and I can barely tell it's there until I wipe it away with the tip of my fingernail. I've soldered bad joints before, and those leaks were VERY apparent. Does this sound like a leak or could it just be condensation (the rest of the pipes are pretty sweaty)? I just wanted to run it by you guys before I redid it. Thanks.