Stay warm and drain safely
A frozen shower drain is a frustrating winter plumbing problem. When the water sitting in the trap (the U-shaped pipe under your shower) turns to ice, it creates a solid block. Water can’t drain, and if you keep showering, it can back up into the tub or overflow onto the floor.
Never use a blowtorch, open flame, or excessive heat on metal pipes. You can start a fire or burst a pipe. Always use gentle, controlled methods. Step 1: Identify the Problem Make sure the drain is actually frozen, not just clogged with hair or soap scum.