[cbcwright]

I have a drain pipe coming from the main floor of the house from the kitchen sink and garbage disposal that is PVC going into a silver/grey metal pipe in the basement floor. I have to replace the connection from the PVC to the metal pipe. Can I use Pipe Dope or pipe cement when I screw in the 1 1/2' PVC male adapter into the metal pipe?

[speedball1]

I assume the silver/gray pipe is galvanized iron with female threads Correct?

Can I use Pipe Dope or pipe cement when I screw in the 1 1/2' PVC male adapter into the metal pipe?

I would use Teflon Tape on the threads and PVC primer and cement on the PVC connection. Good luck, Tom

[cbcwright]

Yes it is galvanized but the threads inside are not real good. Thanks for your help

[speedball1]

Use three wraps of Teflon Tape. Good luck, Tom

[mygirlsdad77]

Yep, follow Toms advice. Teflon tape on plastic threads. Just clean the galve female threads up as best you can beforehand. Maybe even best to go as far as getting a thread cleaning tap/die.