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When does a sewer lateral need attention if it drains normally?
For a sewer lateral with no recurring slow drains or backups, how do you decide whether routine camera inspection or maintenance is worthwhile? I’m especially curious how the recommendation changes for older clay or cast-iron pipe compared with newer plastic.
What can a camera inspection reliably show about cracks, offsets, or root entry, and which findings would justify follow-up rather than just keeping a record? I wouldn’t assume every line needs annual cleaning, but I’d like to know what signs make it sensible to call a plumber sooner, instead of waiting for a backup.
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I’d treat age and material as reasons to consider a baseline camera check, not as a schedule by themselves: older clay or cast iron may merit closer attention than newer plastic, especially if the line’s history is unknown or there have been past problems. A camera can document visible cracks, offsets, roots, and buildup, but a finding alone doesn’t mean it needs repair. Compare it with the line’s condition and symptoms; arrange follow-up for a significant defect or worsening change. Inspection doesn’t automatically mean cleaning - if a symptom appears, it’s sensible to assess the cause before choosing maintenance.
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