Short answer
For most sinks, a cup plunger and a plastic drain clearing strip fix the majority of clogs: the strip for hair in a bathroom drain, the plunger for kitchen grease and food. If the clog is past the trap, use a 1/4 in hand snake. Keep enzyme cleaners for upkeep. Use a caustic gel cleaner only as a last resort, exactly as the label says, and never plunge or snake a drain with chemical in it.
Match the tool to the clog
| Where the clog is | Usual cause | Start with |
|---|---|---|
| Under a bathroom stopper | Hair and soap | Pull the stopper, then a clearing strip |
| Kitchen trap | Grease and food | Cup plunger, then clean the trap by hand |
| Past the trap, in the wall | Grease buildup, debris | Hand snake through the trap arm |
| Several fixtures backing up | Main line clog | A plumber or a larger auger |
| Slow, smelly, not blocked | Buildup in the pipe | Hot tap water, enzyme cleaner |
Bathroom clogs are mostly hair and soap caught at the stopper (Ask the Builder); kitchen clogs are mostly grease and food in the trap (The Home Depot). That is why the cheapest mechanical tools usually beat liquids.
Drain cleaner and snake types
-
01Start here
Cup plunger
Best for: kitchen sinks and any sink with standing water
- Reach
- Trap and just past
- Works on
- Food, grease, soft clogs
- Chemicals
- None
- Flat-bottomed cup made for sinks, not the flanged toilet kind
- Block the overflow or the second drain so the pressure goes into the clog
- Keep an inch or two of water in the bowl so it pushes water, not air
-
02Hair clogs
Plastic drain clearing strip
Best for: bathroom sinks clogged with hair
- Reach
- About the length of the strip
- Works on
- Hair, soap scum
- Chemicals
- None
- A thin plastic strip with barbs that hook hair as you pull it out
- Sold under names like Zip-It; many are sold as disposable
- Pull the stopper first, or push it through a grid drain
-
03Past the trap
Hand snake, 1/4 in
Best for: clogs the plunger cannot reach
- Cable
- 1/4 in
- Length
- About 15 to 25 ft
- Works on
- Clogs in the trap arm and wall pipe
- Crank the drum to turn the cable into the clog, then pull it back
- Easier to run through the trap arm with the trap removed
- Wear gloves; the cable comes back dirty
-
04Stubborn clogs
Drum auger (larger snake)
Best for: clogs deeper in the line
- Cable
- Usually 1/4 in or larger
- Length
- 25 ft and up
- Drive
- Hand crank or drill
- A bigger drum holds more cable for longer runs
- Drill-powered models spin faster but can kink cable if forced
- If it will not get through, call a plumber before you damage the pipe
-
05Upkeep
Enzyme drain cleaner
Best for: slow drains and odor, not full clogs
- Speed
- Slow, often overnight
- Works on
- Organic buildup, per the maker
- Hazard
- Low, follow the label
- Makers say the enzymes or bacteria break down organic buildup over time
- Not a fix for a sink that has stopped draining
- Green Gobbler and others sell drain products in this category
-
06Last resort
Caustic gel drain cleaner
Best for: grease clogs, used exactly per the label
- Speed
- Per the label
- Works on
- Grease, hair, per the maker
- Hazard
- High: skin, eyes, fumes
- Makers describe heavy gels, such as the Drano style, as sinking through standing water to the clog
- Never mix with another cleaner, and never follow with a plunger or snake
- If it does not work, flush as the label says before you open the trap
What about baking soda and vinegar?
The fizz looks like work, but a chemist writing in The Conversation explains that baking soda and vinegar mostly cancel each other out into water, a salt and carbon dioxide. Any cleaning comes largely from leftover baking soda and hot water. It is fine as gentle upkeep, not a clog fix. The full story is in baking soda and vinegar for drains.
A simple kit for most homes
You do not need every tool. A cup plunger, a two-pack of clearing strips and a 1/4 in hand snake cover nearly every sink clog you can fix yourself, and none of them involve chemicals.
Starter kit
Step-by-step guides
Each tool works best in a set order. Follow how to unclog a kitchen sink or how to unclog a bathroom sink for the full sequence, or how to fix a slow sink drain if water still runs but slowly. Many clogs come out just by cleaning the P-trap.
Questions people ask
What is the best drain cleaner for a bathroom sink?
For hair clogs, a plastic barbed drain clearing strip usually works better than any liquid. Pull the stopper, push the strip down, and pull the hair out. If that fails, a small hand snake reaches into the trap.
What is the best drain cleaner for a kitchen sink?
A cup plunger with the other drain blocked, then cleaning the P-trap by hand. Kitchen clogs are mostly grease and food in the trap. A hand snake handles clogs just past the trap.
Are chemical drain cleaners safe for pipes?
Follow the label: it lists the pipes and fixtures the product is made for. Caustic cleaners are hazardous to skin and eyes, must never be mixed with another product, and leave you working on a drain full of chemical if they do not clear the clog.
Do enzyme drain cleaners work?
They are made for slow buildup, not a sink that has stopped draining. Enzyme products work slowly, often overnight, and are best used as regular upkeep. Follow the label for how often and how much.
What size drain snake do I need for a sink?
A 1/4 inch cable is the usual size for sink drains. A 15 to 25 foot length reaches through the trap and into the drain line in the wall. Larger cables are for tubs, showers and main lines.
When should I call a plumber instead?
If a hand snake will not get through, if several fixtures back up at once, or if water comes up in another drain when you run the sink. Those point to a clog in the main line.
Sources
Last reviewed October 12, 2026. Parts, sizes and listings change; check the product details before you buy, and follow the maker’s instructions.