This plan utilized solenoid valves to automate the large number of zones that this system of drip tape required. The customer had 300' runs that was made possible because of drip tape and its low flow output. It allows you to stack a few long rows together whilst other drip products would struggle to just do one row. This customer used the DT-FCV250B drip tape connectors but the .400 barb would be necessary for longer runs. 

Ref 13040