Residential main sewer lines and underground drains typically do not require aggressive routine cleaning unless you have specific recurring issues. However, if your property features mature trees with aggressive root systems near lateral pipes, professional preventative snaking or hydro-jetting every 12 to 24 years is highly recommended. For standard homes without root issues, annual inspection via a video scope is sufficient to catch grease buildup or pipe settling early. Verification: Consult a licensed plumber to determine a customized maintenance schedule based on your property's plumbing layout.
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