Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.
Going from 3/4-inch PVC pipe threads to 1/2-inch poly
Have been using Rainbird couplings to go from 3/4-inch PVC to 1/2-inch poly; however, I am finding that the new couplings all leak at the threaded end. I have used tape on the PVC threads but that does not solve the problem.
Any suggestions on alternative method to make this transition?
Check the threads of the new coupling. Are they hose threads or pipe threads?
They aren't really compatible so it will most likely leak if you're screwing hose threads onto pipe threads. And visa versa.