Clogged Sink

Clogged Sink? How to Prevent and Fix Kitchen Sink Clogs


Clogged kitchen sinks are an extremely common problem in homes. Studies estimate over 30% of households deal with a clogged kitchen sink each year. This issue can cause a major inconvenience, making it difficult or even impossible to use your sink for any purpose until the clog is cleared.

Clogged drains also lead to very unpleasant messes. Backed up water, grime, and debris in the sink is unsanitary and can overflow to other areas of the kitchen. Clearing clogged sinks often requires harsh chemicals that can be hazardous. Plumbers typically charge $100-$300 to clear drain clogs.

For homeowners, clogged kitchen sinks lead to frustration, unexpected costs, and sanitation issues. Preventing clogs is crucial to avoiding these problems and expenses. This guide covers tips to stop clogs before they start, maintain clear pipes, and handle any clog issues that do arise.

Common Causes of Clogs

Kitchen sink clogs are often caused by a buildup of common household materials that collect in the pipes over time. Some of the most frequent culprits of kitchen clog include:

  • Food waste and grease buildup – Food particles, oils, and grease can build up on the sides of the pipes, eventually hardening and narrowing the flow of water. Items like coffee grounds, egg shells, and cooking grease are notorious for sticking to pipes and contributing to clogs over time.
  • Hair – Hair washing, shaving, and grooming activities near kitchen sinks can result in hair going down the drains. This hair can get tangled and collect other debris, turning into a dense clog.
  • Buildup from cleaning products – Many liquid cleaning products poured down the kitchen drain can leave residue that coats the pipes. Soaps, detergents, bleaches, and cleaning solutions contribute to gradual buildup on pipe walls.
  • Items shoved down the drain – It’s tempting to try disposing of small food scraps or other items down the kitchen drain, but this is a surefire way to cause clogs. Produce stickers, bottle caps, aluminum foil, and even produce like fruit and vegetable peels can snag in pipes and cause major clogging issues.

Preventing Food Clogs

One of the most common causes of kitchen sink clogs is food waste getting stuck in the pipes. There are a few habits you can adopt to help prevent food clogs:

  • Use drain catchers/strainers – Place drain catchers or strainers over all your sink drains to catch food particles before they go down the drain. This includes dish strainers in the kitchen sink and hair catchers in the bathroom sink. Empty strainers into the trash regularly.
  • Don’t pour grease down drain – Grease, oil, and fat can stick to pipe walls and accumulate over time. Never pour grease, fat drippings, or oils down your drains. Let grease cool and dispose of it in the trash.
  • Compost food waste when possible – Consider starting a compost pile or collection service to dispose of food scraps rather than sending them down the garbage disposal. Composting food waste is eco-friendly and reduces the burden on your pipes.

Taking these simple precautions around food waste will help prevent pipes from clogging up. Be mindful of what goes down your drains and install strainers to catch food particles before they cause a clog.

Preventing Hair Clogs

Hair is another common culprit for clogged kitchen sinks. Strands of hair can get washed down the drain from grooming activities, collecting with food particles and soap scum to create dense clogs. Here are some tips to prevent hair buildup in your drains:

  • Install drain catchers or strainers over all sink drains. These devices trap hair and debris before it goes down the pipes. Clean out hair and particles collected in the catcher regularly.
  • After brushing hair or shaving, make sure to wipe any loose strands from the sink basin. Never rinse hair down the drain.
  • Avoid washing hair in a kitchen sink if possible. Hair contains oils and products that can coat pipes. Use a bathroom sink for hair washing/rinsing instead.
  • Consider getting haircuts outside of the home to minimize loose hair trimmings.
  • Use a hair trap or catcher on your shower drain as well to catch loose hairs near the source.

Following these simple practices will keep hair from accumulating in your kitchen drains and forming clogs over time. Acting preventatively saves the headache of dealing with backed up pipes down the road.

Kitchen Sink Clogs
Kitchen Sink Clogs

Avoid Pouring Harsh Chemicals

Many household cleaners like drain cleaners, bleach, and ammonia can actually make clogs worse over time. The chemicals in these products can react with the materials in your pipes, causing buildup that leads to blockages.

Instead of pouring caustic chemicals down the drain, try using more natural cleaning solutions whenever possible. Baking soda and vinegar, for example, can help break up sink clogs without damaging pipes. Hot water and lemon juice is another natural alternative. Enzyme-based drain cleaners are also available that help dissolve organics without harsh chemicals.

Limiting disposal of fat, oil, and grease down the drain is another way to avoid clogs without turning to dangerous chemical cleaners. Scrape plates into the trash before washing to remove excess fats. Maintaining strainers over drains to catch food scraps can also help reduce buildup.

Overall, reaching for harsh chemical drain cleaners too often can do more harm than good. Try starting with gentler, natural solutions first before turning to stronger commercial products.

Regular Maintenance

Keeping up with regular maintenance for your kitchen sink drains can help prevent clogs. Here are some tips:

  • Monthly drain cleaning with baking soda/vinegar – Once a month, pour 1 cup baking soda down the drain followed by 1 cup vinegar. Cover and let sit for 30 minutes, then rinse with hot water. The chemical reaction can help dissolve buildup.
  • Use enzyme drain cleaners regularly – Enzyme cleaners like Draino can help break down organic matter like food and oils on a regular basis. Use monthly or biweekly according to package directions. This helps prevent buildup over time.
  • Professional drain cleaning services – For periodic deep cleaning, consider hiring a plumber for professional drain cleaning 1-2 times per year. They have powerful equipment to clear blockages and remove years of accumulated gunk from your pipes. This preventative maintenance can avoid major clogs down the road.

Regular upkeep like this will help keep your kitchen drain pipes clear and keep water flowing freely down the drain. An ounce of prevention is worth a pound of cure when it comes to clogged sink drains!

Dealing with Clogs

If you find your kitchen sink is draining slowly or not at all, a clog is likely the culprit. Here are some tips for clearing clogs yourself before calling a plumber:

  • Try a plunger first. Place the plunger over the drain opening and plunge up and down rapidly several times to try and dislodge the clog. Make sure you have filled the sink partially with water before plunging to help force water through the pipes.
  • Use a drain snake/auger. If plunging doesn’t work, try using a metal drain snake or auger. Feed the end of the snake down the drain and twist to work through the clog. Pull back once the clog is cleared. Be sure to sterilize the snake afterwards.
  • Caustic drain cleaners as last resort. Chemical drain cleaners containing lye or sulfuric acid can help dissolve organic clogs. However these cleaners can damage pipes so only use them as a last resort if other methods fail. Wear gloves and safety goggles when using.

Calling a professional plumber is recommended if you are unable to clear the clog on your own. They have specialized tools and expertise for removing even the most stubborn clogs quickly.

Prevent Garbage Disposal and Kitchen Sink Clogs
Prevent Garbage Disposal and Kitchen Sink Clogs

When to Call a Plumber

Kitchen sink clogs that aren’t resolved through simple methods like a plunger, drain snake, baking soda and vinegar, or commercial drain cleaners likely require a plumber. Here are signs it’s time to call in a professional:

  • Water overflowing from the sink and not draining at all, even after trying several at-home remedies. This indicates a complete blockage in the drain pipe that requires disassembly.
  • Repeated clogs that keep returning quickly after removing them. There may be a bigger issue like a tree root invasion or collapsed pipe.
  • Standing water in the sink that takes much longer than usual to drain, such as several minutes. This points to a partial blockage that needs professional equipment to clear.
  • Gurgling sounds from the drain and foul sewage odors coming from the sink, which can mean sewer gases are backing up.
  • Clogged fixtures elsewhere in the house that drain through the same pipes, indicating a blockage affecting the main drain line.
  • Visible cracks, corrosion, or damage to the sink piping. The drain pipes may need replacement.
  • A history of pouring fats or harsh chemicals down the drain that could have damaged the pipes.
  • Signs of a sinkhole, depression, or soft soil around exterior plumbing. This can indicate a pipe burst underground.

If you have taken reasonable measures to clear a clog yourself without success, hiring a professional plumber is likely the next step to get your kitchen sink functioning properly again without damage. They have the high-powered equipment and expertise to fully clear drain obstructions.

Installing Garbage Disposals

Garbage disposals can make it easier to keep food scraps from clogging your sink drain. However, they also come with some downsides to consider before installing one under your kitchen sink.

Pros of Garbage Disposals:

  • Convenient way to grind up and wash away small food scraps that would otherwise head down the drain.
  • Helps prevent buildup of decaying food in drain pipes.
  • Modern disposals are relatively quiet during operation.

Cons of Garbage Disposals:

  • Can lead to overuse and putting too much food waste down the drain instead of composting.
  • Risk of jams or damage if non-food items like silverware accidentally fall in.
  • Require electricity and water to operate, so increased utility costs.
  • Some types may require more frequent maintenance and part replacements.

Proper Use and Maintenance:

  • Run a strong flow of cold water before, during and after using the disposal.
  • Gradually feed in small amounts of food waste while flushing down with water.
  • Avoid putting large bones, eggshells, coffee grounds, and fibrous produce like celery down the disposal.
  • Run the disposal regularly to prevent buildup even if not actively grinding food.
  • Every 1-2 months, pour a half cup of baking soda down the drain while running water to help deodorize.
  • Periodically use a disposal cleaning product or ice cubes to freshen and maintain.

Alternatives Like Composting:

  • Many food scraps like fruit and vegetable peels can be composted instead of put down the disposal.
  • Composting offers an eco-friendly way to reuse food waste for gardening needs.
  • Can save on water and electricity usage compared to a garbage disposal.
  • Allows beneficial microorganisms to break down waste naturally.
  • Good option for homes without access to garbage disposals or sewer systems.

So in summary, garbage disposals provide convenience but also use resources. Consider whether a compost system or other waste disposal may be a greener choice for some or all of your food waste instead.


Clogged kitchen sinks are a common nuisance that can be avoided with some simple preventative measures. By being mindful of what goes down the drain, homeowners can stop clogs before they start. Avoid putting food scraps, grease, and hair down the sink which can build up over time. It’s also important to avoid harsh chemicals that can damage pipes and cause clogs.

Regular maintenance like using a drain strainer, running hot water, and using baking soda and vinegar can help keep drains clear. Periodically snaking drains and cleaning pipes is also recommended. If clogs do occur, try a plunger or a drain snake first before calling a plumber. For severe clogs, a plumber may be required.

Preventing clogs through smart everyday habits and regular upkeep is the best way to keep water flowing freely and avoid emergency clog situations. Taking the time to actively prevent clogs will save homeowners frustration, money, and damage to plumbing down the road. By following these tips, you can keep your kitchen sink clear and prevent the nuisance of clogged drains.

Rafael Hegmann
Hegmann Rafael, owner of Drain Service Inc. graduated top of his class in plumbing shop at Essex North Shore Agricultural & Technical School. He was born and raised in Washington, D.C. Hegmann Rafael conducts research and writes articles on drain and plumbing topics.

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