If you spend any time looking at jetter marketing, you’d think the whole business runs on PSI. Every brochure tries to push the pressure higher. Bigger number, bigger claim, bigger brag. But out in the field, where you’re actually clearing lines for a living, extreme PSI usually isn’t what gets the job done.
Most of the time, it’s not even necessary.
The reality is that the majority of commercial and municipal drain cleaning work happens well below those extreme pressure ranges. Grease lines, restaurant drains, apartment stacks, storm drains, and municipal laterals all respond to a combination of steady pressure, good water flow, and the right nozzle. When those three things are working together, lines clear fast and consistently without needing to chase some outrageous PSI number. You don’t need to overbuy or overpower.