Main Line Automatic Drains
Mainline Drains... Just screw into a standard tee fitting on the pipe at low points of each sprinkler system zone or section somewhere before the section valve of each zone. Orient fitting and drain at 45° downward angle for optimal performance!
What We Recommend
We recommend 1 Mainline Drain located on the water supply piping after the backflow device but before it splits up to head to the control or zone valves. We also recommend 1 lateral line drain, and 1 to 2 end of line drains per zone or section of the sprinkler system. You should not exceed more than 3 to 4 drains per zone or sprinkler section.
