Sorry, your garbage disposal is not invincible
Fat, oils, grease, and soap scum gum up your kitchen pipes.
Food scraps like coffee grounds, egg shells, and starches are also main culprits.
Clear drain clogs by checking the disposal or plunging or snaking the sink.
Keep clogs away with routine maintenance and regular drain cleaning services.
Homeowners spend a lot of time at their kitchen sink; some studies say it can range from 30 minutes to two hours every day. So when it gets clogged, it’s no small problem. Here are seven common culprits behind that clogged kitchen sink and an action plan to fix the problem so you can get right back to that mounting pile of dishes.
Any cooking ingredient with a high amount of fat in it—such as oil, bacon grease, or lard—may have been a liquid when you poured it down the sink, but over time, the fat hardens up as it meets the cool interior of the drain, causing annoying clogs. You should dump any kind of grease into an old coffee can and then get rid of it in the garbage.
Pasta, potatoes, beans, and rice are four common culprits of clogged kitchen sinks. As they expand when exposed to water, they create a paste-like substance that’s an enemy to your pipes. Dispose of these foods in the trash can.
Similar to the starches we listed above, coffee grounds get heavy when mixed with water, blocking the pipes. Coffee should be thrown away in the garbage, tossed into the compost heap, or sprinkled on the soil of acid-loving plants like roses, as it lowers the soil’s pH.
What clogs kitchen drains? The answer is almost always food related. So food should always go into the garbage disposal, the trash, or the compost because, over time, bits and pieces of your dinner can become trapped in the P-trap, that curved pipe under the sink. Celery and other stringy foods should never go into the disposal, as they can get wrapped around the blades. Bones, fruit pits, and eggshells are other no-nos; they’re way too hard.
Many soaps are made with fats, and when they are mixed with hard minerals found in some water, they can build up a nasty clog in your pipes. To fix this, look for soap-free cleansers and hire a local plumber to pressure-clean the pipes.
If you’ve got kids, there’s a chance that a marble, figurine, or other small object has accidentally been tossed into the kitchen sink, causing the clog. To clear the pipes of any miniature race cars or dinosaurs, you’ll likely want to call in a plumber, as you’d need to remove the P- or J-trap.
Tree roots are another culprit in clogged kitchen sink drains. If you’ve got multiple clogged drains, there’s a chance that your sewer line is backed up, and it could be from tree roots. The roots will look for even the smallest of cracks in your sewer line—which could exist if the lines are older—and will weasel in and grow inside. A plumber will need to break up the tree root and then use a tool to clear the sewer line, and you’ll likely need to get the lines repaired.
If you suspect the problem might be last night’s ratatouille, you can check the garbage disposal. First, try running it to grind up any food scraps, and if that doesn’t work, reset the circuit breaker in case the clog overloaded the motor.
There’s a reason the plunger has been around so long and is in nearly every person’s home: It’s a simple, effective tool. Fill your sink with three or four inches of water, then plunge over the clogged drain for 30 seconds or so. Take a break and check the water to see if it is swirling, an indication that it is starting to drain. If not, try plunging again.
The trap is that U-shaped part of your sink’s pipe. Given its shape, it's a magnet for clogs. Loosen the fasteners holding the trap on, and make sure to place a bucket below the sink to catch water. Once it’s off, take a look inside to check for anything stuck in it. You can use a coat hanger to push any mass out of it before screwing it back in place.
Also known as a plumber’s auger, a snake is an inexpensive tool (roughly $30-$50) that, via manual crank, sends a tough line of wire into the pipes to clear out any clogs. You may have to use it several times before the blockage is pushed out.
If the simple solutions above don’t work or you have several clogged sinks, this clog might be out of your league. Rather than renting more elaborate equipment and risking the possibility that you make things worse and break or damage your pipes, call a local sink repair professional to be sure that you get the job done right the first time. That will save you time and a big headache.
To avoid clogs and other problems, you should maintain a clean kitchen sink and follow a regular maintenance routine. These tasks include:
Placing a food-particle strainer in the sink drain to catch bits before they do down the drain
Running water while the disposal is on to ensure food scraps get properly flushed away
Keeping the amount of food your disposal has to work through to a minimum so the motor is never overloaded
Cleaning the disposal regularly
Clearing out pipe build-up weekly by pouring half a cup each of baking soda and white vinegar down the drain
Using eco-friendly drain cleaners with bacteria and enzymes to keep pipes clear
Sure, it’s easier to take your chances and just rinse everything down the drain. But clogs are seriously inconvenient, and they can be expensive to fix. And if they cause overflows and related damage, the price tag goes up. For these reasons, it’s smartest to take an extra moment or an extra step to keep no-no items from going down the drain, including:
Fat, oil, grease, and drippings
Starchy foods like potatoes, water, pasta, beans, and undiluted water from pans of starchy foods (Tip: Run the tap water when straining starchy foods from the water you cooked them in.)
Coffee grounds
Food scraps, including vegetable peels and bones
Egg shells
Toys and similar objects
Soil from houseplants
Hair
Boiling water (it can melt and warp some types of pipes)
Cat litter
Paper towels
Produce stickers
Personal hygiene products
Cotton balls and cotton swabs
Motor oil, transmission fluids, anti-freeze, and other automotive fluids
Solvents, paints, nail polish, and similar items
Corrosive, acidic, and caustic liquids
Flammable substances
Medications
Golf balls (even if your garbage disposal packaging advertises that it handle it)
Even if you’re careful about what goes down your drains, pipes can slowly get gummed up over time, shrinking the space water has to flow through and eventually leading to clogs. To prevent this, consider hiring a local drain cleaning pro for regular drain cleaning services. Getting routine drain cleanings can help keep drains running smoothly by regularly clearing out the gunk that accumulates with daily use. Paired with your maintenance efforts, this is a sure-fire way to never have to face a dreaded sink clog again.
C.E. Larusso contributed to this piece.
