10 Steps To Winterize Your Sprinkler System

 

1. If unfamiliar with blow out process contact a professional for assistance.

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2. Divide the total gpm of each zone by 7.5. That’ll give you the cubic feet per minute (cfm) you need to blow it out.images

3. Rent or buy a 10-cfm compressor and hose.

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4. Set the compressor air pressure regulator to a maximum of 80 psi for rigid PVC pipe systems, or 50 psi for flexible black polyethylene pipe.

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5. Turn off the water supply and set the system timer to open just one zone. Next, open the manual drain valve at the end of that zone (if equipped).

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6. Connect the air line to the blow-out port.

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7. Connect the other end of the air hose to the compressor and blow out the line. The heads should pop up and spit out water.

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8. Disconnect the hose as soon as they run dry. Don’t overdo the blowout, without water cooling the plastic gears can melt in less than a minute. So move on to the next zone and allow the heads to cool.

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9. Go back and blow out each zone a second time.

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10. Sit back and relax knowing you won’t have to worry about your sprinkles until Spring.

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