I am installing a new faucet in my bathroom... I have to replace water lines but i can't seem to get rid of the old water line . The closest thing that i found online is called shark bite fitting, but i don't think that's it as the gasket surrounding the plastic pipe seems made of gum rather than metal. How to unscrew it?
Edit: i tried to simply unscrew the metal part, but that doesn't seem to work...
Any help will be highly appreciated