I am trying to replace a Pop-Up Drain to match the new faucet I am installing. However, I cannot get the flange at the bottom of the sink to disconnect from the drain pipe so that I can install the new drain. Any pointers on how to get this apart?
If you have the trap out of the way, you should be able to unscrew the flange until it falls on the floor. There is about 2" of threads there. Once the flange falls on the floor the pop-up assembly will lift (or shove) out of the hole in the sink.