I just successfully cut into my houses hot & Cold water lines to add service for my basement bath. Turned main water off, opened faucets on first floor, drained the lines, and sweat in the new t-valves with shut-offs. When I turned main water back on I had no leaks. All of the faucets work (some aspiration initially), except the kitchen sink which continues to aspirate and is only at about 40% pressure. It's been an hour, and I'm scratching my head. Any suggestions?