If your kitchen sink smells like fish, the first thing you should do is give it a good cleaning. Use a mild soap and hot water to scrub the sink basin and drain thoroughly. Make sure to clean the faucet and handles as well. Any food or bacteria buildup can contribute to the unpleasant odor.1. Clean your sink
A clogged drain can also cause your kitchen sink to smell like fish. Use a plunger to try and dislodge any blockages. If that doesn't work, you may need to use a drain snake or call a plumber for more serious clogs.2. Check for clogs
Baking soda and vinegar are natural cleaning agents that can help eliminate odors. Sprinkle baking soda into your sink and down the drain, then pour vinegar down the drain. The combination will create a chemical reaction that can break down any buildup and neutralize odors.3. Use baking soda and vinegar
If the baking soda and vinegar method doesn't work, you may need to use a commercial drain cleaner. Look for one that specifically targets foul odors and follow the instructions on the label carefully. This should help clear out any bacteria or buildup causing the fishy smell.4. Try a commercial drain cleaner
If your kitchen sink has a garbage disposal, it could be the source of the fishy smell. Run water and turn on the disposal to see if the smell gets worse. If it does, you may need to clean your garbage disposal to remove any food debris that could be causing the odor.5. Check your garbage disposal
To clean your garbage disposal, you can use a combination of ice cubes and rock salt. This will help dislodge any buildup and sharpen the blades. Another option is to pour a mixture of dish soap and hot water down the disposal while it's running.6. Clean your garbage disposal
Food debris can get stuck in the crevices of your sink and cause lingering odors. Make sure to thoroughly clean your sink after each use, paying special attention to the areas around the drain and garbage disposal. You can also use a toothbrush to scrub out any hard-to-reach areas.7. Check for food debris
If the smell is coming from a clogged drain, using a plunger may help dislodge the blockage. Make sure to cover the overflow hole with a wet cloth before plunging to create suction. If the smell persists, you may need to use a drain snake or call a plumber.8. Use a plunger
If none of the above methods work, there could be a leak in your pipes that is causing the fishy smell. Check for any visible leaks and call a plumber if necessary. Leaks can also lead to more serious issues, so it's important to address them as soon as possible.9. Check your pipes for leaks
If you've tried all of the above methods and your kitchen sink still smells like fish, it's time to call in a professional plumber. They will be able to identify the source of the odor and fix any underlying issues that may be causing it. Don't hesitate to seek help if the problem persists.10. Call a plumber