Next time do the research and DO NOT call Roto Rooter for help. I had a slow drain in my master bedroom and the liquid drano didn't remedy the problems.
Turns out, the problem wasn't with the plumbing, but with the drain stopper had broken. I could have figured that out if I just spent another 5 more minutes unscrewing 2 bolts. *sigh* In the end, I was charged $150! That's just ridiculous for like 10 minutes worth of work!
And I thought I made a lot of money! Roto Rooter is a big ripoff and would never call them again!
Review about: Roto Rooter Plumbing Service.
Monetary Loss: $150.