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A tiny video camera is used by plumbers to look at the obstruction in the sewer line. They insert a nozzle in the sewer line to begin the process so that it can be cleaned effectively. A high-pressure stream of water is sprayed into the drain line using the hydro-jetting technique. Sludge, debris, tree roots, and grease that collect inside the pipes are removed using a hose to spray water. To know more visit the blog post about how does hydro jetting work.