works only for minor soap scum, not hair clogs. It can, however, deodorize after mechanical removal: pour 1/2 cup baking soda down the drain, followed by 1 cup white vinegar, wait 15 minutes, then flush with boiling water.

If the water is draining slowly but not completely stopped, the clog is likely near the surface.

A significant amount of loose hair falls out during the shampooing process. Brushing your hair before you get in the shower removes the loose strands so they end up in the trash can, not the drain.

If water backs up into the shower pan immediately upon turning on the faucet, or if multiple fixtures (sink, toilet, shower) are affected, the clog has moved past the trap and into the main stack. In this case, a plumber’s auger (or “snake”) or hydro-jetting is necessary. Frequent clogs despite good maintenance may indicate a pipe obstruction like tree roots or a broken pipe—again, a job for a pro.