Since a repipe by MasterServ Plumbing July 2014 one of the drains they replace the vertical line on has not drained right. We were concerned that debris was released into the drain during the repipe. The MasterServ came out but assured me that there was not clog in their portion of the work. I called AAP out to investigate with a camera. Steve said that his camera was not a micro camera and was not recommended for my inch and a half line. He tried another plumber that he thought might have a micro camera. The other plumber didn't have the smaller camera. After a bit more discussion I decided to have Steve cable the drain. Well, whatever the obstruction was Steve is confident he was able to clear it. I was able to running the water for quite awhile with no back up. I would recommend AAP. Steve is my first call for plumbing in the future.