Sprinkler Blowouts – Winterize your lawn sprinkler system today to prevent damage.

Sprinkler Blowouts – Winterize your lawn sprinkler system today to prevent damage.

Posted by Jonathan Manning, CLT - B.S. Horticulture, Colorado State University in Enhancement Services

Denver has been experiencing an Indian Summer as warm weather is lasting late into the fall this year.  As of yet, the temperatures have not dropped into the mid 20’s to cause a deep freeze.  With snow showers predicted on Thursday and lows expected around 25 degrees now is the last chance to protect your sprinkler system from the first deep freeze.

Remember, to ensure a sprinkler system blowout/winterization job is done right, a compressor which produces enough air (Residential blowouts -~100CFM Commercial Blowouts – 185 CFM minimum) is what is needed.  The amount of air, measured in Cubic Feet per Minute, ensures the heads remain fully extended throughout the whole process pushing the water out of the underground pipes of the lawn sprinkler system.  When the ground freezes over the winter this process will protect your underground sprinkler parts, of your lawn sprinkler system, from splitting  and needing sprinkler repairs performed in the spring.  It is also necessary to blow back through the copper pipes of the backflow prevention device (PVB or RPA) to the drain on the interior of the house or even to the stop-n-waste/curb stop to ensure no damage occurs from water in these pipes.  Also, brass valves on the PVB or RPA (including  petcocks) should be turned to 45 degree angle  allowing water to not be trapped in the valve.  Quality sprinkler technicians will know this and make sure the sprinkler winterization is performed correctly.

A Better Garden is still doing blowouts until Wednesday this week (November 10, 2010).  We still have sprinkler winterization appointments available in the city of Centennial, Denver & Greenwood Village for today, November 9th, and in the the Highlands Ranch, Littleton, Englewood & Lakewood areas for November 10th. Call now as spots for sprinkler winterizations are quickly filling up (303) 433 – 3750.

09 Nov 2010 1 comment
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