If both sides of the sink are clogged, the problem is most likely the main water line drain or your garbage disposal. Plumbing design flaws can also be to blame. If you don't install your drainage pipes at the proper slope, the clog can worsen due to slow drainage.
If both sinks in your kitchen are clogged, it could be due to several reasons: Shared Drain Line: If both sinks are connected to the same drain line, a blockage further down the line can affect both sinks. This is often caused by food debris, grease, or soap buildup.
Use a plunger
If the clog is small enough, using a plunger on either of the double sink's drains can be enough to dislodge whatever's causing the backup. If it's particularly stubborn but a few bits of waste are coming free, you can try the other basin to give it a bit more push.
Use Baking Soda and Vinegar Pour a cup of baking soda into the clogged sink and wait for about four minutes. Afterwards, pour a cup of vinegar down the same sink. Plug the sink and leave it for 10 minutes to break down the blockage. Afterwards, run hot water to see if the clog is gone.
Blockages: The most common reason for one sink to back up into the other is due to blockages. These can be as a result of food scraps, grease, soap build-up, or any object that has fallen into the sink. Plumbing Design flaws: In some cases, the problem could be due to the way your plumbing system has been assembled.
Pour one cup of fresh baking soda down the drain, followed by one cup of white vinegar. Place a rubber stopper or other sink hole cover over the drain opening. Wait 15 minutes to allow the vinegar and baking soda to unclog your drain, Then take out the drain cover and run hot tap water down the drain to clear the clog.
Method #1: Use a Plunger
A plunger is one of the simplest and most effective tools for clogged sink drain in your kitchen. Here's how to use it: If your sink has an overflow hole or you're dealing with a double sink, cover the other drain or hole with a wet cloth. This will help build pressure when plunging.
Slow drains may not always be due to clogs.
Plumbing vents, soap buildup, and garbage disposal malfunctions are among the most common culprits.
Drain issues – Your garbage disposal sits on top of a drain pathway. If that drain pathway gets clogged, it can prevent the disposal from sending food down properly. When the clog reaches a severe enough state, it will float food back into your sink, even if the garbage disposal already ground it to bits.
A completely clogged drain will require the help of a professional plumber, but baking soda and vinegar might be a quick fix for a partially clogged drain. This solution will dissolve and push the sludge through the pipes to allow water to flow through easily. Let hot water run for a minute to warm up the pipes.
First, remove all stagnant water from the sink. Replace it with hot water until it is halfway full, and it generates a seal around your drain. Place the sink plunger over the drain and start pumping up and down swiftly. Remove the plunger, observe if the water flows, and repeat the procedure until water flows freely.
If you have a double-bowl kitchen sink, stuff a wet rag into the drain opening that isn't clogged (this will help with suction). If your sink doesn't have a garbage disposal, use Drano® Kitchen Granules Clog Remover. It creates heat inside your drain to melt and dislodge greasy clogs.
Completely blocked sink
Position the plunger over the plughole and push straight down a few times. Remove the plunger and see if the water has started to drain. Do this a few times to try to push the blockage down the drain. If you cannot unblock your kitchen sink with a plunger, try using a plumber's snake.
The primary tools for maintenance are a bucket and adjustable pliers. Place the bucket underneath the trap, loosen the nuts at the ends of the P-trap, and remove the trap by sliding it down to release the contents into the bucket. The final step is to check for any blockage in the pipes and then clean them out.
If both sides of the sink are clogged, the problem is most likely the main water line drain or your garbage disposal. Plumbing design flaws can also be to blame. If you don't install your drainage pipes at the proper slope, the clog can worsen due to slow drainage.
There May Be a Clog in the Drain Line
Begin by filling up the other sink (not the one with the disposal) with water. Stop when there are three – four inches of water. Then plug the side with the garbage disposal. Use your plunger, put it over the plug, and try to clear the drain.
Drano® Max Gel Clog Remover , Drano® Dual-Force® Foamer Clog Remover, Drano® Max Build-Up Remover, and Drano® Liquid Drain Cleaner may be safely used to unclog a kitchen sink.
Pour 1/2 cup of baking soda and 1/2 cup of vinegar down each side of the sink. Cover the openings and let the mixture work its magic for about 10 minutes. Run a gallon of warm water down each side to finish flushing debris.
Causes of a Non-Draining Sink Despite Clear Pipes
Incorrect Pipe Installation or Design: In some cases, the issue may not be with the objects or debris in your pipes, but rather with the pipes themselves. If they're installed at an incorrect angle or have design flaws, it can impede the flow of water.
While it's not the end of the world, it won't cause immediate damage to your home and the water will eventually drain away, a slow drain is still a problem that needs to be fixed. A drain that is slow to empty will mean there is already a clog in the system and, over time, one that will only get worse.
Drano's Max Gel Liquid Clog Remover works quickly too, without any elbow grease on your part. Simply pour the formula down a backed-up sink or drain and let it go to work. For minor clogs and slow-flowing drains, the gel works in 15 to 30 minutes.
The Santeen Sulfuric Acid Drain Opener proved to be the most potent among all the chemical drain cleaners we tested, effectively dissolving 80% of the hair, 80% of the organic matter, 40% of the grease and 76% of the paper products.
If there is standing water in the sink, try plunging to release the clog. If you have a double sink, remove your dish drainer or other items before you begin. Cover the disposal drain with a sink plunger, then plunge up and down rapidly to build up water pressure and loosen the clog.