PVC compression tee to copper pipe


Old 05-03-05, 07:54 AM
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PVC compression tee to copper pipe

I'm installing a new sprinkler system and have a question about tying into the mainline. As I understand, I should use a PVC compression tee. I have a 3/4 inch copper line going to my house, so I should use a 1/2'' PVC tee. My question lies in whether there exists a convenient PVC fitting that takes the 1/2" tee to a 1" pipe size? Or do I need to assemble my own?


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Old 05-11-05, 08:15 PM
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I would use only a copper tee into the main line with a male or female adaptor sweated onto a short piece off of the tee. From there, I would make the transition to PVC.
Old 05-11-05, 10:39 PM
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I would also check your local code office to see if a backflow preventer is required immediately before connecting into the main water supply line. Some also include a vacuum breaker. Most places require this for safety. It is possible to siphon lawn water, including any chemicals you may use, back into your main water supply. Good luck with your project.

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