Pro tricks for "de-watering" horiz. Cu runs prior to sweating??
Howdy Gang, it's good to be back! (I actually get caught up sometimes.) :D
Anyways, buddy has a long (and apparently perfectly level) run of 3/4" copper. Along this run is a coupler that needs to become a tee.
Have done the shop-vac blowing into the hose bib (w/OUT anti-siphon) at far end, expelling water from hose bib WITH anti-siphon at the other end. Still boiling water with my torch--not even blistering some old latex paint, let alone melting solder.
There is some minor leak-by at the shutoff valve, but *apparently* only a few ounces overnight.
I have suggested drilling a 1/8" hole in the doomed coupler, as even if one or both pipe ends are perforated, pipe needs to be cut back anyway, since end-spacing much greater for Tee than coupler... buddy is resisting this.
SO... any tips and tricks from the pros on how to DEHYDRATE this copper canyon?
Thanks in advance.