<p dir="auto" style="caret-color: #ffffff; color: #ffffff; font-size: medium; white-space: pre-wrap;">Before assuming the whole line must come out I wanted to know when replacement is the honest next step. https://drainexpress.ca/drain-replacement/ ties replacement to collapsed sections, chronic failure after cleaning attempts, and structural problems that cleaning alone cannot fix &mdash; rather than treating every slow drain as a replacement job. Straightforward if you want diagnosis first and replacement only when it is truly needed.