Two crews can run the same jetting truck down the same street and get very different results — one flushes a line clean in one pass, the other burns an hour fighting a blockage that barely moves. The difference is almost always nozzle selection, pressure management, and knowing the line's history before the truck ever arrives. As a Class 2 operator, you move from knowing what the equipment does to knowing how to run it well and when to schedule it — the process-control judgment that separates an efficient cleaning program from a reactive scramble.
Jetting Equipment Operation: Nozzle Selection
A hydro-jetting truck is only as effective as the nozzle threaded onto the end of its hose. Different nozzles direct the water stream differently, and choosing the wrong one wastes time, water, and — in the worst case — pushes a blockage further downstream instead of removing it.