I removed what I didn't realize was a compression fitting on a copper pipe for my kitchen cold water supply. Is it possible to reuse the compression fitting or do I need to buy a new one to replace it?
It looks like it's some kind of plastic. It took a tremendous amount of force to loosen, and a fairly cursory attempt at re-tightening resulted in a leak. Also, I assume I should wrap everything in teflon tape when replacing the connectors?