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Mainline Drains

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 degree downward angle for optimal performance!

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HP 4000 - Blazing 1/2 inch MPT MAINLINE DRAIN

Helps prevent you from having to blow out your system each winter. Drains slow, conserves water. Patented ball valve design provides Turbulent Flushing Action with every on/off cycle to prevent clogging. Includes Dirt-Stopper Screen. Opens when pressure drops below 5 psi. Guaranteed up to 1250 psi burst pressure.

List Price: $3.64
Our Price: $2.39
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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.