A sink draining slowly is a common issue that homeowners experience. When the sink drains slowly, it takes twice the amount of time to complete tasks. This can be very frustrating when trying to do dishes or take a bath. In addition to the inconvenience, a slow-draining sink can also have serious repercussions. In this article, we'll look at the common causes of a slow-draining sink, their repercussions, and the steps you can take to fix the problem.

1. Soap Scum

Pouring soap down a sink is one way to make it cleaner, but it can also clog the pipes. The first thing you need to do to prevent clogging is to use dishwashing soap in a sink that does not have an aerator. Aerators are small nozzles that are installed in sinks, tubs, and showers. These nozzles direct water through small holes that break large drops of water up into smaller drops. These small drops of water are easier to rinse away and are less likely to stick to surfaces.

However, aerators also direct soap scum into the pipes. If you have an aerator, fill the sink with water, and add a stiff dishwashing soap. Scrub the sink, and let the soap suds set on the sink. Letting the soap set on the sink will help clean the sink and prevent soap scum from clogging the pipes.

2. Hair and Food Scraps

Hair and food scraps are two other common causes of clogging. Hair usually dissolves into soap scum quickly and does not clog pipes. However, hair can also be thicker, like human hair, which can clog pipes. If you have a hair clog, try pulling the hair up further into the pipes and then running hot water over the garbage disposal. This may solve the problem.

Food scraps can also clog pipes because they do not get dissolved like soap scum. Instead, they are left behind, and they harden and clog the pipes. To prevent clogging, you can use a sink strainer to catch food scraps and hair before they reach the pipes. You can also use a garbage disposal. As long as you do not put the wrong things down the disposal, you can eliminate your garbage disposal clogging issues.

3. Grease Buildup

Grease is another common cause of clogging. All that is needed to keep pipes clog-free is to keep them clean. If you allow grease to collect on your pipes, they will clog quickly. If you make sure to clean any grease spots off your pipes, you will prevent them from clogging.

You can use a kitchen sink sprayer to spray hot water onto grease spots. Make sure that the spots are completely dissolved before you clean them off. You can also use a grease-cutting detergent in the sink. Make sure that the detergent is rinsed off the sink completely to get all of the grease off.

4. Aging Pipes

As pipes age, they become cracked and corroded. This process gradually causes clogs by creating pockets where soap scum, food scraps, and grease can build up. To prevent clogs, you can inspect your pipes for damage. If you see any damage or corrosion, you can call a plumbing repair person to inspect the pipes.

5. P-Trap Problems

The p-trap is where water flows down the drain and out to the sewers. When the clog is due to a p-trap problem, it is usually caused by too much water flow. This can happen when you have a lot of water from a dripping faucet or shower head. If you have noticed a lot of water in your sink and you have made sure the faucets are off, you may have a problem with the p-trap. The p-trap can also get clogged by too much soap or food in the sink. To fix a p-trap problem, you may have to remove the p-trap and clear out the pipes and the p-trap.


If you want to get rid of slow-draining sinks, you need to be able to determine what is causing the problem. Most of the time, the problem is caused by clogs in the pipes. If you want to fix your sink, you will need to know where the clog is, and you will need to remove the clog. These tips will help you do just that.

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