As my name suggests I am in the sewer business. Been at the same place for 28 years. We have remote control cameras that go thru storm or sanitary sewer pipelines. We find out what is wrong with the pipes and have "trenchless" techniques to do repairs from inside the pipe so we don't have to dig-up the streets. Its a weird industry, but hey, SOMEBODY'S GOT TO DO IT! We are number ONE in the number TWO business.