Professional licensed plumbers clear main sewer line obstructions using heavy-duty mechanical and hydraulic equipment. For root intrusions and solid paper clogs, plumbers deploy motorized drum augers or sectional sewer cleaning machines equipped with specialized cutting blades. For heavy grease accumulation and stubborn sludge, they utilize high-pressure hydro-jetting units that blast water at up to 4,000 PSI to scour interior pipe walls completely clean. Verification: Perform a post-clearing video camera scope inspection to verify that the sewer line is fully open.
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