When a Saturday Morning Shower Turned into a Cold Slog: Javier's Story

https://cleaneverycorner.com/slow-draining-showers-diagnose-main-line-vs-individual-drain-problems-and-finally-silence-the-gurgles/

Javier woke up looking forward to a hot shower. He turned the knob, waited, and was greeted by a sad trickle. He blamed the water heater at first, but the kitchen sink poured just fine. His downstairs neighbor reported the same problem upstairs