While popular, heavy-duty chemical cleaners should be a last resort. They can damage older pipes and are harmful to the environment. If you use them, always wear gloves and ensure the room is well-ventilated. When to Call a Professional
What forms is a "rat's nest"—a matted, hydrophobic filter. Once this lattice is established, it begins to trap everything else: cotton fibers from towels, dead skin cells, and sand. The water, which once spiraled down with a satisfying gurgle, now faces hydraulic resistance. The流速 (flow velocity) drops, and solids settle, compacting the blockage further. It becomes a dam. bath blockage