Thanks, do you prefer teflon to a plastic thread pipe joint compound? I have never "sealed" a threaded sprinkler head; do you usually tape these as well?
I have a bit of a complicated manifold that has one water line in splitting into 2 zones, each with a contol valve. The connections from the 3/4 line in to each valve uses a threaded male 3/4" adapter. The first time I built this, I tightened this adapter into the valve slightly more than hand tight. Unfortunately both valves leak (a couple of drops per minute). Should I use teflon tape on the threads of the adapter and how tight should I make the adapter-valve connection?
