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 ...

(MENAFN- GetNews) You are relying on a simple plastic valve to control water flow, but have you ever wondered how it is made? If a valve fails due to poor manufacturing, it can cause major leaks, ...

[Bob] built this simple device that can best be described as an electronic float valve. He was wasting a lot of water from overflowing water troughs and buckets around his farm. He would usually put ...