how to unclog a kitchen sink with standing water

Learn how to unclog a kitchen sink with standing water! Quick, easy DIY methods to clear that stubborn clog and get your sink draining again.


What's the best first step when my kitchen sink is full of standing water?
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The very first thing you should do when you have a kitchen sink full of standing water is to stop running any more water into the sink. This prevents the situation from worsening and potentially overflowing, which could lead to water damage in your kitchen.

 Before you start plunging or using drain cleaners, assess the situation a little further. Are you dealing with a single sink or a double sink? If you have a double sink and only one side is clogged, focus your initial efforts on that side. If both sides are full, it likely indicates a clog further down the drain line. Additionally, look under the sink and place a bucket or container beneath the U-bend (also called a P-trap). This is essential in case you need to disassemble the pipes later, as it will catch any water and debris that spills out, preventing a bigger mess. Once you've stopped the water and assessed the situation, consider the possible causes. Grease, food scraps, and hair are common culprits. If you've recently disposed of a large amount of grease down the drain, that's a strong indicator of the problem. Understanding the likely cause can help you choose the most effective unclogging method. For instance, hot (but not boiling) water can sometimes dissolve grease clogs, while a plunger might be more effective for dislodging solid food particles.

When should I call a plumber instead of trying to unclog it myself?

You should call a plumber if you’ve tried basic DIY methods like using a plunger, baking soda and vinegar, or a drain snake and the clog persists, especially if you suspect a more significant issue like a blockage deeper in the plumbing system, damage to the pipes, or if you’re dealing with sewage backup.

Calling a plumber avoids potentially exacerbating the problem. Repeated forceful plunging when a clog is severe can, in some instances, damage older or weakened pipes. Similarly, aggressive use of chemical drain cleaners can corrode pipes over time and can be harmful to you. Furthermore, if multiple drains are clogged simultaneously, or if the blockage seems to be affecting other plumbing fixtures in your home (e.g., slow flushing toilets), it indicates a larger issue within your main drain line that requires professional diagnosis and specialized equipment to resolve. If you are uncomfortable working with plumbing or if you’ve tried several DIY solutions without success, it’s best to err on the side of caution and call a qualified plumber. They have the experience and tools, such as video inspection cameras, to accurately locate the clog and determine the best course of action. Ignoring a persistent clog can lead to more significant and costly plumbing repairs down the line, including potential water damage to your home. A professional plumber can also identify and address any underlying issues that are contributing to recurring clogs, preventing future problems.

And that’s all there is to it! Hopefully, your sink is now happily draining away. Thanks for reading, and we hope these tips helped you conquer that stubborn clog. Come back soon for more handy home hacks!