If your kitchen sink is not holding water, the first thing to check is the drain. Over time, debris and food particles can build up in the drain, causing it to become clogged. This can prevent water from draining properly, resulting in a sink that won't hold water. To check the drain, remove the drain cover and use a flashlight to inspect the inside. If you see any blockages, use a plunger or plumbing snake to clear them out.Check the drain
Another common cause of a kitchen sink not holding water is a problem with the pipes. If the pipes are old or damaged, they can develop leaks or cracks, which can prevent the sink from holding water. To check the pipes, run water in the sink and look for any signs of leakage. If you notice any leaks, you may need to replace the pipes to fix the issue.Check the pipes
One of the most overlooked causes of a kitchen sink not holding water is a faulty faucet. Over time, the parts inside the faucet can wear out or become damaged, causing it to not function properly. To check the faucet, turn it on and off and observe the water flow. If the water is not coming out evenly or is leaking, you may need to replace the faucet.Check the faucet
If your kitchen sink has a garbage disposal, it can also be the culprit behind the water not holding. If the garbage disposal is clogged or not functioning properly, it can prevent water from draining properly. To check the garbage disposal, turn it on and listen for any unusual noises. If you hear any grinding or humming, it may be a sign that the disposal needs to be repaired or replaced.Check the garbage disposal
Another possible cause of a kitchen sink not holding water is a problem with the water supply. If your home has low water pressure, it can prevent water from flowing into the sink properly. To check the water supply, turn on other faucets in your home and see if they have low water pressure as well. If this is the case, you may need to contact your water company to resolve the issue.Check the water supply
The P-trap is a U-shaped pipe located under the sink that helps to prevent odors and gases from coming up from the sewer. However, if the P-trap becomes clogged or damaged, it can also prevent water from draining properly. To check the P-trap, remove it and clean out any debris or buildup. If it appears to be damaged, it may need to be replaced.Check the P-trap
The air gap is a small device located on the sink or countertop that helps to prevent dirty water from flowing back into the sink. If the air gap is clogged or not functioning properly, it can cause water to not drain properly. To check the air gap, remove the cap and clean out any debris or buildup. If it is damaged, it may need to be replaced.Check the air gap
Some sinks have an overflow drain, which is a small opening near the top of the sink that allows excess water to drain out. If this overflow drain becomes clogged, it can prevent water from draining properly. To check the overflow, use a small brush or toothbrush to clean out any debris or buildup. If it does not seem to be clogged, the issue may be with the stopper.Check the overflow
The stopper is the mechanism that controls the flow of water in the sink. If the stopper is not functioning properly, it can prevent water from draining properly. To check the stopper, remove it from the sink and clean it off. If it appears to be damaged, it may need to be replaced.Check the stopper
Lastly, if none of the above solutions seem to be the cause of your kitchen sink not holding water, it could be an issue with the water pressure. Low water pressure can prevent water from flowing into the sink properly, resulting in a sink that won't hold water. To check the water pressure, you may need to contact a professional plumber to assess and fix the issue.Check the water pressure