I would rather unstop a sewer line any day than run a grease line. There is a hospital that I take care of (one of three) They have a small in floor grease trap in a hallway behind their kitchen, that runs to a lift station. The trap itself is not big enough to handle the amount of grease they put down it. But they dont have the funds to upgrade so I unstop it on a yearly basis. 5 years ago it backed up when I was working for my first union shop. We walked down in the basement and the whole hallway was full of water and rotten food. The hallway is about 30yards long. It was horrible. Ran a cleanout on the upsteam side of the line. I swapped companies and I found myself back at the same hospital, Christmas Eve two years ago. Same situation. 8hrs later I finally got the thing to drain down. I now have a company come and jett the line out to the lift station once a year, and pump both pits down. It always stops up around Christmas time. Anybody have clients set up on yearly drain cleaning?