We, the human race, have had sewer systems for a long time. Depending on how you define a sanitary sewer system, we have been making efforts in that direction for perhaps six-thousand years, or even more. We have been needing them even longer, of course, but what could we do? As long as we were wandering around hunting and gathering, it was not much of a problem, as we would be somewhere else before the waste left by our little band became a serious problem. But when we started to stay in one place, forming communities and even cities, something had to be done. Fortunately, we a now have some pretty advanced plumbing solutions, and qualified plumbing contractors to help us.
