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Shower and tub draining slow: what's clogging your drain and how to clear it

Slow shower and tub drains are almost always caused by hair, soap scum, and mineral deposits tangled in the drain trap. You can sometimes clear the first few inches yourself, but if water still pools around your feet after a few minutes, the blockage is deeper and needs professional cleaning.

Do this right now

1

Remove the drain cover

Unscrew or pry off the strainer or stopper. Look inside for visible hair and soap buildup. Pull out what you can with your fingers or needle-nose pliers and drop it in the trash.

2

Pour boiling water down the drain

Boil a large pot of water and carefully pour it down the drain. Let it sit for five minutes. Sometimes the heat loosens soap buildup enough to restore some flow.

3

Try a drain snake if you have one

A hand-crank drain snake from a hardware store can reach 6 to 8 feet down the line. Feed it in, crank it slowly, and pull up any hair you snag. Do not force it.

4

Call if it does not improve in 24 hours

If your shower still drains in more than 30 seconds, the blockage is too far down or too dense for a DIY tool. A plumber has a motorized snake and camera to locate and clear the clog without damaging the pipe.

Hair is the enemy of fast drains. Every shower sends hair down the line, and it wraps around the trap and collects soap film and mineral deposits from our local water. In Prunedale and the neighboring towns, the mineral content in water adds another layer to the clog over time. A slow drain often means weeks or months of buildup, not something that happened overnight.

If you ignore it, the slow drain becomes a stopped drain. Water backs up into the tub and does not move at all. At that point, taking a shower becomes impossible, and the bacteria and mold breeding in the blocked pipe can smell awful. Prevent a full stoppage by treating slow drainage as a signal to act.

A plumber will either use a motorized drain snake to break up and pull out the clog, or send a camera down to see exactly where the blockage is and whether it is hair, mineral scaling, or a broken pipe section. After clearing it, the drain should flow freely again. For future prevention, use a drain screen or trap to catch hair before it goes into the pipe.

Common questions

Why does my shower drain get slow even though I use a drain cover?
Drain covers catch large hair, but small hairs and soap residue still sneak past. Over weeks, soap and mineral deposits build up and slow the water flow. Even with a cover, drain cleaning is a normal maintenance task.
Can I use a chemical drain cleaner to fix a slow drain?
Chemical cleaners work on some clogs, but they are toxic, they damage old pipes, and they do not always break up the blockage. If you do use one, wait at least two hours before calling a plumber, because the caustic liquid can hurt a technician.
What is the difference between a plumbing snake and a plumbing camera?
A snake physically breaks up and pulls out the clog. A camera is a tiny probe on a flexible cable that shows the plumber what is actually blocking the drain. Sometimes both are used: the camera finds the problem, and the snake clears it.

Still not sure?

Describe what you're seeing to a real Prunedale plumber: call (831) 555-0170 or send the form. Free, no obligation.