A 2.
Install automatic drain valve sprinkler system.
Here is a quick overview of how to install an automatic drain valve in a sprinkler system.
Essentially the automatic drains blow out the lines every time the water is turned off.
Dig small pit under drain and fill with pea gravel.
Line pit with landscape fabric.
Easy to install at lowest point in piping system.
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Slowly open the manual drain valve.
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If you have manual drains you will need to use an air compressor with pressure between 50 100 psi.
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B 4.
This saves a lot of time and expense and protects your sprinkler system against rogue freezes.
Check to see if your system has auto drain valves.
Drains pipes and sprinklers to prevent water from freezing inside an irrigation system.
I had a request from a viewer to show how an automatic lawn sprinkler drain works so i created an above ground mini sprinkler zone to demonstrate a working.
Open one of the sprinkler system control valves either manually or electrically from the timer to relieve pressure on the sprinkler system mainline.
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Prevents freeze damage to sprinklers and piping.
Install at a low point in your system to drain pipes after each use to prevent freeze damage to sprinklers and piping.
This one step is sufficient to winterize underground irrigation systems with auto drain.
Mpt filtered sprinkler drain valve is used to drain irrigation lines after each use.
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If so simply turn off water supply open valves and allow excess water to drain from the system.
Repeat this procedure for all manual drain valves on the sprinkler system mainline.
Turn off the sprinkler system mainline shut off valve.
Install drains at all low points in each line.
Figure out where the low spots are on the line and plan on putting auto drains there.
Turn the sprinkler system off at the valve for the various zones.
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This allows for better drainage.