I'm a (somewhat) new homeowner and I'm trying to get my sprinkler system to work correctly. I have no idea what these people were doing, but they did not do this the easiest or most efficient way, that's for sure! I finally got to where the drip line hooked up to the PVC pipe. I tested all my zones, 1 and 2 work ok, but 3 (the drip line) doesn't. When I turn it on, at the water it appears that it's turned on (there is a slight leak) but no water comes out the pipe/drip hose. I don't know what th...