<font face="Arial"> I am thinking about installing a "Poor Man's" sprinkler system (you'll probably think I am crazy when you read this) and need some input on the "plan" and the type of backflow devices that might be necessary. The "Poor Man's" system consists of connecting multiple poly-pipe lines with pop-up sprinkler heads to my existing hose bibs using the multi-port manifolds and battery powered timers that have recently become available. (I am retired so I have a lot of spare time on my h...
