New guy here. Remodeling shower, and I have the main water supply off, and no water coming out of any fixtures. I cut my old diverter out and am going all new the rest of the way up. Problem is, I can't sweat a new fitting on the cold water pipe, due to water in the pipe. I tried sucking the water out but it keeps filling up. I used some plastic tubing to start a siphon, but it has been slowly draining for over an hour now. I'd love to turn my main back on before I go to bed. Any ideas, I realize it's kind of late but thought I'd give it a shot...