The Y filter protects the small emission units from any debris which may enter your line. As we follow down the primary line from the backflow preventer, we come to the valve manifold. A valve manifold is a collection of valves, which is designed to water a certain space in your yard. A drip system allows you to use an exact amount of water at each plant location as a substitute for flooding all the space. Drip irrigation is a sensible and economical solution to water read more