4. Threaded fittings cont. - clean the threads, run a couple turns of teflon tape. Usually clockwise, just ask yourself what direction the fitting you're putting on is going, you want the tape to go in that direction.

Replace the shutoff valve, making sure it's tight, and wrenching it so the fitting end will come up level on top. I always use 1/4 turn valves now unless I can't get one when I need it. They're so much easier, for the people, only cost a little more.