Pumping and jetting solve two different problems in a storm sewer line. Pumping removes standing water and the sediment that's settled at the bottom of a catch basin or line, which is usually enough for routine maintenance. Jetting is a different tool for a different job. It uses high-pressure water to blast through debris, root intrusion, or compacted sediment that's actually blocking the line rather than just sitting in it.
If a storm sewer line is draining slowly even after pumping, or if water is backing up during a rain event instead of flowing through, that's usually a sign the line itself is restricted and needs jetting to clear it out. Getting the diagnosis right up front saves a return trip and gets the system flowing the way it should.
