When the decision is expensive, yes. A camera at $125 to $500 in published guides answers the questions that decide thousands: roots or collapse, one joint or the whole run, lining candidate or excavation. On a line that clogs once and clears, it is optional. On a line that clogs twice, on an old clay or cast iron lateral that has never been seen, and before buying a house, it is the cheapest certainty in plumbing.
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