Siphon Drains... self-pierce and clamp onto poly pipe in just 3 seconds. Or, it installs just as fast on PVC after drilling a 3/8 in. hole. Install on the pipe at low points of each sprinkler system zone or section somewhere after the section valve of each zone.
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.
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