Clearing a main sewer line obstruction typically takes a professional licensed plumber between 1 to 3 hours, depending heavily on the complexity and nature of the blockage. Standard motor-powered snaking for a straightforward paper or root clog can often be completed in under an hour, whereas severe root intrusion requiring high-pressure hydro-jetting, specialized cutting attachments, or a comprehensive video camera inspection can extend the job to several hours. Verification: Ensure the cleanout access point is unobstructed before the plumber arrives to minimize service time.
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