If the sludge does get to a point where it overflows the system, not much you can do in suburbia. The stench becomes unbelievable not to mention the flies if it takes too long to resolve.
Hmmm. Good point. Even if I managed to keep it out of my house, my neighbor’s house probably won’t. Which means this may be something I will put on the back burner. Odds are, if it does get to that point, it will have taken a while, and there will be other more pressing issues.