Hi all - I just replaced a bathroom vanity in my basement. Attached is a picture of what it looked like prior to my work. When I opened it, the adjustable white portion of the plumbing was filled with really toxic black goop that I cleaned out. I'm guessing the jagged walls of the pipe are contributing to this issue. After installing the new vanity, it looks a lot like this, though I had to compress a segment or two to properly line up the plumbing. Should I try to replumb this? I'm not a plumber. Pros and cons? thanks!