FROM THE PREFACE Wastewater collection systems are dynamic, not static. There is no single maintenance method, equipment, or technique that works best. Keeping an open mind, trying new techniques and technologies benefits sewer system operators. No two collection systems are alike. Maintenance staffing, skill levels, equipment, budgets,

No balls? No money? No problem. Just have your buddy hold you by the ankles and lower you into a sewer, armed with a bent coat hanger. There are plenty of spaldeens down there for the scooping. And odds are, a couple of them are perfectly good for stick-ball or king-queen. So what if they're sewer balls. Oh, and one more thing: You better trust the guy who's holding you. I mean really trust him.