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Tips on Winterizing Sprinkler Systems
Posted By Editor On October 6, 2010 @ 10:29 pm In Variety | Comments Disabled
DENVER, CO – It is a date professional landscape contractor John Reffel, III, owner of JLS Landscape & Sprinkler, Inc., remembers well. Last year, on October 10, overnight temperatures dipped to 16 degrees.
“That early freeze caught many homeowners off guard, and caused extensive damage across Northern Colorado to sprinkler systems that were not winterized or protected,” said Reffel, a member of the Associated Landscape Contractors of Colorado (ALCC).
For systems that had not been shut down, the leaks did not appear until temperatures rose above freezing and some homeowners did not realize their sprinkler systems were damaged until they began watering their yards the following spring. That’s when their backflow prevention valves – the brass valve on the outside of homes – began to gush water.
Not Winterizing Sprinkler System Can be Costly
According to Reffel, backflow prevention devices (BFPs) are one of the most costly components of a sprinkler system to replace.
“Not blowing out your sprinkler system properly can lead to replacing the BFP, which can run $300 to $400,” said Reffel. But potential freeze damage does not stop there.
“A hard and prolonged freeze can also damage other expensive components such as mainlines, automatic valves and manifolds, easily raising repair costs to $1,200 or more,” he added.
Steps to Take Now
According to Reffel, recent Indian summer temperatures are, “lulling homeowners into a false sense of security that they can hold off on shutting off their sprinkler systems.” ALCC advises homeowners to take the following steps in October to winterize sprinkler systems:
Do-it-yourselfers can blow out their systems with a standard shop compressor, but according to Reffel, there are advantages to hiring a qualified landscape professional.
“Shop compressors typically only produce about 15 cubic feet per minute (cfm) of volume versus industrial compressors used by the pros that produce 150 cfm. The difference is, a pro can completely blow out a system in about 15 minutes versus it taking two to three hours using a smaller compressor and larger compressors do a more thorough job of blowing out water.”
According to ALCC, fall is also a great time to identify other issues with your sprinkler system. A professional can conduct a sprinkler audit to identify leaks, broken pipes or bad sprinkler heads; address those problems now; or make a record of problems so they can be fixed in the spring.
Last, Reffel recommends using a company that employs Landscape Industry Certified Technicians to winterize your sprinkler system. “ALCC offers a certification program for landscape technicians which requires 10 hours of testing and at least 2000 hours of experience before applying. This program ensures the landscape industry has highly-qualified professionals performing sprinkler system installations and maintenance,” said Reffel.
An Ounce of Prevention
As the early October freeze of 2009 reminds us, take steps now to get your sprinkler system ready for winter. You can pay a pro now to get your system winterized or pay $400 or more to repair a broken system next spring.
“It seems like a small step, but don’t take winterizing your sprinkler system lightly,” said Reffel. “I’ve seen homes that have incurred thousands of dollars in damage from a broken backflow prevention device that leaked water into the basement.”
With more than 700 members across the state, the Associated Landscape Contractors of Colorado is the premier professional organization for Colorado’s landscape contractors. ALCC has been at the forefront for more than 40 years helping the landscape industry address Colorado’s unique climate and promoting responsible use of water and other natural resources. For free weekly lawn and garden tips, visit www.alcc.com  and click on Tip of the Week.
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