When I use threaded fittings for schedule 40 irrigation pipe, do I use Teflon tape or do I just use force until they stop leaking?
Thanks
Teflon or brute force
Jul 05, 2007
8 Replies
I have a lot better results with dope than tape.
Bob
Pipe dope. It lubes the threads so you don't have to use so much force to get it tight.
Thanks.
Do I use regular pipe dope for galvanized pipe, the stuff that comes in a small tube, or is there a special dope for PVC?
Us the Teflon containing pipe dope. Works on virtually verything. HTH
Joe
Neither.
Use good fittings that don't leak much. A lot of the imports are poor moldings with flash or other flaws.
Let them leak a little. Think of it as another drip nozzle for free.
Ooops guess I didn't know what schedule 40 pipe was, sorry :)
You want the stuff that says it is for PVC.
Bob
Irrigation pipe is usually not permanently in place, so a dry assembled fitting could later seize. Teflon filled pipe dope will allow disassembly for repositioning as needs arise. But if the layout is permanent, that issue is moot. A point to consider. HTH
Joe
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