A distribution system loses water every single day through leaks most customers never see — and the difference between a utility that catches those losses early and one that doesn't often comes down to the routine process-control work covered in this guide: keeping valves operable, choosing the right pipe for the job, making service connections safely, spotting leaks before they become main breaks, and knowing the right first moves when a break does happen. As a Class 2 operator, you move from simply recognizing pipes and valves to actively managing them.
Valve Exercising Programs
At the Class 1 level you learned why valve exercising matters — preventing seizure, confirming operability, and confirming location. At Class 2, you need to understand how a program is actually run.
A valve exercising program is a scheduled effort to operate every valve in the distribution system (or at