Converting copper to schedule 40 pvc

5786 Views 7 Replies 2 Participants Last post by secutanudu, May 13, 2009

secutanudu

Discussion Starter · May 10, 2009

I have a double check valve assembly for my sprinkler system, installed by a plumber. I am planning to do all the work after the DCVA myself, in PVC. THe DVCA has a female 1" threaded copper connection on the outlet.

How do I go from that to PVC? Can I screw in a PVC adapter right into the copper (the adapter would be male 1" threaded to female 1" slip).

Thanks.

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majakdragon

· #2 · May 10, 2009

Using a male adapter should be fine. I have seen problems with female PVC adapters, and some areas do not allow them. They have a habit of leaking and cracking.

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majakdragon

· #5 · May 12, 2009

YUP. PVC female adapters are easily over-tightened and crack fast. I hand tightened one and had a leak. When I removed it, crack was apparent and I did not force it by hand.

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majakdragon

· #7 · May 12, 2009

If both lines are PVC, they should be glued. Female PVC adapters are a problem. If you want to take the chance of a leak, use the female adapter.

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