A pipe under our house broke and sewage was draining into our cement crawl space. We had a plumber come in and fix the pipe and they also cleaned up the mess, but the smell is unbearable. Our furnace is down there, although it was not damaged by the leak, every time it turns on the whole house smells. We did spray bleach all over and placed a couple fans to vent it out of the crawl, but I do not think that is going to be enough. What do we do?

There's a disinfectant you can buy at Sam's Club that's called Odo-Ban. Daycares and funeral homes use it to get rid of odors. I don't know where else you might be able to buy it, though. It might take more than one application, but it seems worth a try in this situation.

Thank you, I have also read that lime works but I am not sure if that is a safe solution to the problem.