Our main drain was clogged. I rented a snake and tried freeing it three times with no luck. Mr. Rooter came out @ 1:00 a.m. and camera'd it to see what they could do, but got stuck at the same spot I did. The camera told the story. We had the troubled old clay P-trap replaced with a backflow preventer. Based on the condition of the rest of the clay pipe, Stephen Hughes presented us with a few other options ranging from leaving it as is and hope to get by for a few years all the way up to replacing everything from stack to street with plastic. Everything considered we went with a full replacement. The team of workers that did the job were very organized and professional. Aside from a small deposit up front, Mr. Rooter didn't ask for any money, and even when the job was done did not even bring up the issue of payment until they had re-camera'd to show us the new drain line and backflow preventer from the inside. The price we paid was fair and the job comes with a 25 year warranty, so I'm sure everyone will dump happily ever after.