In the "How to Unclog Any Drain" video by Ask This Old House, plumbing expert Richard Trethewey shares practical methods for clearing clogged drains that may be present in toilets, sinks, and bathtubs. Beginning with toilets, he emphasizes correct plunger usage, creating suction by pulling back after seating the plunger, and advises using a protective coating when employing a closet auger to prevent porcelain damage. Trethewey also highlights the importance of blocking overflow when plunging lavatory sinks.
For sink drains, he recommends checking the trap, building hydraulic force, and gently advancing a wire to dislodge the clog, exercising caution to prevent pipe damage. Similar techniques apply to U-shaped traps, with an emphasis on gentle advancement from above. Trethewey underscores the significance of plunging bathtubs while blocking the overflow.
In subsequent segments, the video emphasizes the common mistake of forcefully inserting wires through fixtures, advocating for downward advancement through traps to target clogs effectively. Trethewey underscores the importance of maintaining clean pipes and highlights the limited efficacy and potential dangers of chemical solutions, urging their use as a last resort.
Overall, the video provides practical insights and techniques for unclogging drains, empowering viewers to tackle common plumbing issues effectively while prioritizing safety and proper maintenance practices.
