Hi all! I replaced the countertops, sinks, and faucets and currently working on the plumbing underneath the sink. I have an A/C condensate drain line that leads into the plumbing underneath the bathroom sink. I don't have any plumbing experience but I've done some research and everything is going well so far. The only problem I'm having is that I'm not finding much info on the subject of replacing that drain hose. It's a thick black hose, and it has some type of clay(it looks like hardnened plumber's putty) which is holding the ends respectively to what it's attached to, which gives it a good seal and prevents water from leaking out. My questions are: 1. What is that hose called and where may I purchase some 2. What type of clay is that and how should I apply it? Ultimately, I'm just trying to figure out the steps needed in order to replace that drain hose. Thanks so much for your time!! P.S : I know that the P trap is backwards. That's why I'm replacing the plumbing from the previous owner. Thanks!