If your kitchen sink is not draining on either side, the first thing you should check is if there is a clog in your drain. Clogs can be caused by a variety of things, such as food particles, hair, or soap scum. These clogs can prevent water from flowing freely down your drain, causing it to back up and not drain properly. To remove a clog, you can try using a plunger or a drain snake. If the clog is deeper in your pipes, you may need to call a professional plumber to clear it out.1. Clogged Drain
In addition to clogs, your kitchen sink not draining could also be caused by blocked pipes. This can happen if something gets stuck in your pipes, such as a large piece of food or an object that accidentally fell down the drain. Blocked pipes can also be caused by a buildup of debris over time. To fix this issue, you may need to use a drain snake or call a plumber to clear out your pipes.2. Blocked Pipes
If you regularly pour grease down your kitchen sink, it could be causing your sink to not drain properly. Grease can solidify and stick to the walls of your pipes, creating a buildup that restricts water flow. To prevent this issue, it's important to properly dispose of grease by pouring it into a separate container and throwing it in the trash. You can also use hot water and dish soap to break down any grease buildup in your pipes.3. Grease Buildup
If your kitchen sink has a garbage disposal, it could be the culprit behind your drainage issues. When the disposal is jammed, it can prevent water from draining properly. To check if this is the issue, turn off the disposal and look for any objects stuck inside. You can use tongs or pliers to remove the object and then try running water to see if the sink drains properly. If the disposal is still jammed, you may need to call a plumber for assistance.4. Garbage Disposal Jam
Sometimes, the problem with your kitchen sink not draining could be as simple as a faulty drain stopper. If the stopper is not closing properly, it can create a blockage in your drain. You can check the stopper by removing it and cleaning it of any debris. If it still does not close properly, you may need to replace it with a new one.5. Faulty Drain Stopper
If none of the above solutions work, it's possible that there is a broken drain pipe causing your sink to not drain properly. This can happen due to age, wear and tear, or even tree roots that have grown into your pipes. In this case, it's best to call a professional plumber to assess the situation and make necessary repairs.6. Broken Drain Pipe
Tree roots can also be a major cause of drainage issues in your kitchen sink. If you have trees or shrubs planted near your sewer line, their roots may grow into the pipes and create blockages. Signs of tree roots in your sewer line include slow drainage, gurgling sounds, and foul odors coming from your sink. In this case, a professional plumber can use specialized tools to remove the roots and repair any damage to your sewer line.7. Tree Roots in Sewer Line
Proper venting is essential for your plumbing system to function properly. If your kitchen sink is not draining, it could be because your drain vent is blocked or damaged. This prevents air from circulating and can create a vacuum that stops water from draining. A professional plumber can inspect your vent and make any necessary repairs to ensure proper venting.8. Improper Venting
If your kitchen sink is not draining on either side and there is low water pressure, this could indicate a problem with your water supply. Low water pressure can be caused by a variety of issues, such as a clogged aerator, a faulty water heater, or a leak in your pipes. A plumber can diagnose the issue and make any necessary repairs to restore proper water pressure.9. Low Water Pressure
Over time, pipes can corrode and deteriorate, especially if they are old or made of metal. This can cause leaks, clogs, and other drainage issues in your kitchen sink. If you notice any signs of corrosion, such as rust, discoloration, or cracks, it's important to call a plumber to replace the damaged pipes and prevent further issues. If your kitchen sink is not draining on either side, it's important to address the issue as soon as possible to prevent further damage to your plumbing system. By understanding the common causes of drainage issues and taking preventative measures, you can keep your kitchen sink functioning properly and avoid costly repairs in the future.10. Corroded Pipes