Bathtub drains are supposed to whisk water away quickly, but hair, soap scum, and mineral buildup can slow or stop the flow. A slow drain is more than a nuisance; it can lead to standing water and unpleasant odors if not addressed promptly.

Common causes

Hair accumulation is by far the most frequent culprit in bathroom drains. Soap scum, toothpaste, and mineral deposits from hard water can form gunk that binds with hair, creating stubborn clogs. Over time, these blockages can widen into more serious obstructions that require professional attention.

DIY fixes and safety

Simple methods can often restore flow. Start with a plunger designed for sinks and tubs, using a seal to maximize suction. If that doesn’t work, a hand-cranked drain snake can dislodge hair and debris trapped deeper in the pipe. Avoid repeated use of chemical drain cleaners, which can damage pipes and fixtures and may not reach deeper clogs.

If you try DIY methods, wear gloves and ensure good ventilation. Do not mix chemical cleaners with other products, and never use an open flame or heat near chemical drains.

When to hire a pro

Call a plumber if the drain remains slow after multiple attempts, or if you notice persistent gurgling, foul odors, or reduced drainage in other fixtures. A professional can perform a camera inspection to locate blockages, use specialized tools to clear them, and check for leaks or venting issues that could contribute to drainage problems.

Professional services may include snaking, hydro-jetting, or replacing sections of piping in complex cases. Regular maintenance, such as installing a hair catcher and flushing drains with hot water weekly, helps prevent future clogs.

Maintenance tips

Protect drains with a fine mesh hair catcher, clean the stopper regularly, and run hot water after showers to dissolve soap and oils. Periodic professional cleanings can catch issues before they escalate.

Bottom line: a slow bathtub drain is often a solvable problem with a mix of simple DIY steps and professional assessment when needed. Knowing when to DIY and when to hire a pro keeps your bathroom flowing smoothly.