Most drain clogs are DIY-fixable. Some aren't. Here's how to tell the difference — and the right order of methods to try before you reach for the phone.
Start Here: What's Causing the Clog?
Kitchen drain: Usually grease, food particles, or soap scum. Grease clogs are sticky and trap everything else.
Bathroom sink or tub: Almost always hair and soap buildup caught in or around the stopper.
Toilet: Usually too much paper, "flushable" wipes (they don't break down), or a foreign object.
All drains slow at once: This is not a single clog — it's a main sewer line issue. Stop reading and call a plumber.
DIY Methods That Actually Work
1. Remove and clean the stopper (bathroom sink/tub)
Before anything else, pull the stopper. Bathroom sink stoppers lift or unscrew. Tub stoppers often unscrew counterclockwise. The hair mat you find on it is almost always the clog. Clean it off, reinstall, test.
This fixes the majority of slow bathroom drains.
2. Boiling water (kitchen drain)
Pour a full kettle of just-boiled water directly down the kitchen drain in three stages, waiting 30 seconds between pours. This melts fresh grease clogs.
Do NOT use boiling water on porcelain or older PVC drains — it can crack porcelain and soften older plastic fittings.
3. Baking soda + white vinegar
Pour ½ cup baking soda down the drain, followed by ½ cup white vinegar. Cover the drain, wait 20–30 minutes, then flush with hot water. The fizzing action helps break up soft clogs.
Note: This is more effective for prevention and minor slowness than for a completely blocked drain.
4. Plunger (toilet and sink)
Use a flange plunger for toilets (the rubber has an extended lip that seals the drain hole). Use a cup plunger for sinks and tubs.
Key technique: fill the drain enough to cover the cup, place the plunger over the drain, and use sharp up-down strokes — don't just push down. The pull stroke is what breaks the clog free. 10–15 strokes, then test.
5. Drain snake / hair snake
A $10 plastic drain snake from any hardware store can pull hair clogs from bathroom drains. Insert it into the drain, twist and pull. You'll usually pull out a surprisingly large hair mass.
For kitchen drains, a manual hand crank snake (25 ft) can reach clogs past the p-trap.
What NOT to Do
Don't use chemical drain cleaners regularly. Products like Drano use caustic chemicals that can damage older pipes (especially cast iron and galvanized), corrode rubber gaskets, and create hazardous fumes. Occasional use in a healthy PVC drain is fine — but if you're using them repeatedly, the drain has a structural or recurring problem.
Don't force a snake deeper than it goes easily. If the snake hits a hard stop, you may be at an offset or partial collapse in the line — not just a clog. Forcing it can cause damage.
Don't ignore gurgling sounds from other drains. If your toilet gurgles when you run the washing machine, you have a venting problem or a main line issue. That requires a professional.
When to Call a Plumber
Call Honey Bear Plumbing at (865) 284-2424 when:
- Multiple drains are slow or backed up at the same time — this is a main sewer line problem, not a DIY job
- The toilet is overflowing and plunging isn't helping — especially if other drains back up when the toilet fills
- You've snaked the drain and it's still slow — the clog is past where you can reach, or the line has a structural issue
- Water is backing up into the tub when you run the washing machine — main line is partially blocked
- You see sewage on the floor — stop using all drains and call immediately
- The drain has been slow for months and returns after every cleaning — there's a recurring cause (root intrusion, grease trap, pipe scale) that needs camera inspection
Frequently Asked Questions
What is the fastest way to unclog a drain?
For a bathroom drain, removing and cleaning the stopper. For a kitchen drain, a kettle of boiling water followed by plunging. For a toilet, a proper flange plunger with good technique.
Can I use a wire coat hanger to unclog a drain?
It works in a pinch for pulling hair from a bathroom drain, but a $10 plastic drain snake works better and won't scratch your fixture.
Why does my drain clog keep coming back?
Recurring clogs usually mean one of three things: (1) grease buildup in kitchen lines that needs hydro-jetting, (2) root intrusion in older sewer lines, or (3) a crushed or offset section of drain pipe. A camera inspection identifies which one.
Is it safe to use Drano in a garbage disposal?
No — chemical drain cleaners can damage disposal seals and cause fumes. Use the reset button on the disposal, then plunge, then call a plumber if the disposal or drain is still blocked.
Professional Drain Cleaning in Greater Knoxville
When DIY doesn't cut it, Honey Bear Plumbing clears drains throughout Knox, Blount, Anderson, and Loudon counties. We use professional drain snaking and hydro-jetting — not just chemicals.
Call (865) 284-2424 or schedule online.