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Old 04-18-2012, 11:14 AM   #1
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Ball valve cracked on sprinkler backflow.


My lower ball valve cracked over the winter due to freezing. Can I replace just this ball valve or are you supposed to replace the entire backflow unit? I notice they sell the units complete with the ball valves. I have cut the pipes and removed the entire backflow unit. I purchased a new ball valve through amazon and plan to try and just replace the faulty valve and re solder the connections.

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Old 04-18-2012, 11:25 AM   #2
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Ball valve cracked on sprinkler backflow.


No picture so not sure how anyone would know what your trying to work with.

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Old 04-18-2012, 11:40 AM   #3
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Ball valve cracked on sprinkler backflow.


Someone with knowledge of sprinkler systems would know. Here's a photo

Ball valve cracked on sprinkler backflow.-image-964978777.jpg

Last edited by jamjr74; 04-18-2012 at 11:44 AM.
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Old 04-18-2012, 12:30 PM   #4
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Ball valve cracked on sprinkler backflow.


Actually called a pressure vacuum breaker....just like my setup:
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Ball valve cracked on sprinkler backflow.-100_4114.jpg   Ball valve cracked on sprinkler backflow.-100_4115.jpg  

Last edited by hammerlane; 04-18-2012 at 12:40 PM.
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Old 04-18-2012, 12:34 PM   #5
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Ball valve cracked on sprinkler backflow.


Those look like WATT's brand ball valves.
That secondary outlet fitting on those is NOT plain vanilla.

First step is to identify what you have... this looks like your item:
http://www.watts.com/pages/_products...ls.asp?pid=564

Once that is done it's about sourcing it.
hth
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Old 04-18-2012, 12:37 PM   #6
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Ball valve cracked on sprinkler backflow.


Quote:
Originally Posted by jamjr74 View Post
My lower ball valve cracked over the winter due to freezing. Can I replace just this ball valve.
Is what I circled the part you are referring to as the "lower ball valve"?
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Ball valve cracked on sprinkler backflow.-image-964978777.jpg  
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Old 04-18-2012, 02:26 PM   #7
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Ball valve cracked on sprinkler backflow.


Quote:
Originally Posted by jamjr74 View Post
My lower ball valve cracked over the winter due to freezing. Can I replace just this ball valve or are you supposed to replace the entire backflow unit? I notice they sell the units complete with the ball valves. I have cut the pipes and removed the entire backflow unit. I purchased a new ball valve through amazon and plan to try and just replace the faulty valve and re solder the connections.
There should be a test procedure for the backflow preventer vacuum breaker unit to verify that it's still working properly. In lieu of that, I would replace the vacuum breaker unit. For me, my family's health in event of loss of water pressure from the city is worth the cost of a properly working backflow preventer.

All the best,
HRG
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Old 04-19-2012, 11:29 AM   #8
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Ball valve cracked on sprinkler backflow.


Quote:
Originally Posted by hammerlane

Is what I circled the part you are referring to as the "lower ball valve"?
Yes this is what I am talking about.

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