Q: I had to turn off the water supply valve at the top of my water heater. So I turned it, but it kept on turning and turning without shutting off the water. A neighbor of mine said it is a gate valve ...
The parts used in this cannon are as follows: (1) 3' length of 3" diameter pressure rated PVC pipe (1) 3'2" length of 2" diameter pressure rated PVC pipe (1) 1/2" PVC ball valve (the cannon may ...