An awful garbagy smell coming from the drain while washing dishes is often caused by food particles or grease buildup in the drain or the P-trap (the U-shaped pipe under the sink that traps debris and prevents sewer gases from entering your home). Here are some steps you can take to eliminate the stink:
Flush with Hot Water: Start by running hot water down the drain for a few minutes. Hot water can help break up and flush away grease and food particles that might be causing the odor.
Use Baking Soda and Vinegar: Sprinkle about 1/2 cup of baking soda down the drain, followed by 1 cup of white vinegar. The combination of baking soda and vinegar can create a chemical reaction that helps break down organic matter and eliminate odors. Let it sit for a few minutes, then flush with hot water again.
Boiling Water and Salt: Boil a kettle of water and pour it down the drain. Follow it up by pouring a handful of table salt down the drain. The hot water can help dislodge and flush away debris, and the salt can help neutralize the odor.
Use a Plunger: If the smell persists, you can try using a plunger to dislodge any clogs or buildup in the drain. Ensure there is enough water in the sink to cover the plunger's rubber cup and plunge vigorously to create pressure and force the blockage out.
Clean the P-Trap: If the smell still lingers, the issue might be in the P-trap. Place a bucket under the P-trap to catch any water and debris, then carefully remove the trap using a wrench. Clean the trap thoroughly, removing any accumulated food particles or gunk. Once clean, reattach the trap, ensuring it is securely in place.
Biological Drain Cleaner: There are commercial biological drain cleaners available that contain enzymes and bacteria that can break down organic matter and eliminate odors. Follow the manufacturer's instructions when using such products.
Avoid Dumping Grease: To prevent future smells, avoid pouring grease or oil down the drain, as they can solidify and cause blockages and odors. Instead, dispose of grease in the trash.
Regular Maintenance: Periodically clean your sink and drain to prevent the buildup of debris and odors. A mixture of baking soda and vinegar can be used for routine maintenance every few weeks.
If the smell persists despite trying these methods, there might be a more significant issue with your plumbing, and it's best to consult a plumber for a thorough inspection and resolution.