Removing a clog in a triple sink is not too different from removing a clog in a single or double sink. You must first determine where the clog is located by seeing whether it backs up a specific sink, 2 of the sinks or all of the sinks.
Tools and Materials Needed:
- Plumber's snake
- 1/2 cup baking soda
- 1/2 cup distilled white vinegar
- Toilet plunger
- Petroleum jelly
Step 1 - Use the Plumber's Snake to Remove Debris
Sometimes, a plumber's snake is all you need to unclog debris from a triple sink. Navigate the snake through 1 of the sinks that appears to be clogged, as the debris could be caught along that individual sink's plumbing, or a part of the plumbing shared by multiple sinks that are overflowing. The snake may allow you to push through or pull out clumps of hair, food, soap scum or other waste that may be clogging the sink. If the clog doesn't completely disappear after using the plumber's snake, removing at least part of the debris will assist in getting water flowing through the plumbing.
Step 2 - Allow a Natural Declogging Remedy to Soak
There are a number of chemical drain unclogging mixtures you can use to try to decompose the debris, but some of them can prove fairly corrosive to your plumbing. They may also not be that effective, if you don't combine them with other techniques, such as the plumber's snake. Using a natural alternative is less damaging to your pipes. Pour 1/2 cup baking soda down each of the sinks in the triple sink. Even if 1 or 2 of the sinks isn't slow, cleaning it with this natural method from time to time can help prevent clogs from forming.
After pouring the baking soda, pour 1/2 cup distilled white vinegar down each sink. The mixture will foam out of the sink. Allow to soak for at least 20 minutes. You can add a little more vinegar every 5 minutes or so, to start the foaming action again, if desired. Once you've allowed the mixture to soak, rinse the sinks thoroughly with warm water. If the clog remains in the triple sink, move on to step 3.
Step 3 - Use a Plunger to Force Pressure through the Sinks
A toilet plunger can be quite effective, when it comes to forcing the clog to break up, and move through the plumbing. Once you've removed excess debris with a plumber's snake, and tried to use the natural declogging remedy to break down some of the debris, spread petroleum jelly along the lip of the plunger, this helps the plunger stick better. Run a little water into the most troublesome sink in the triple sink. (You can repeat later with the other 2 sinks if necessary.) The water should be slow-draining or overflowing, if the sink is still clogged.
Put the plunger into the sink, making sure that the lips of the plunger completely cover the drain. Without lifting the plunger off of the sink, push the plunger down and up in slow, steady motions. Repeat at least 5 to 10 times. Lift the plunger, to see if the water is running quickly through the clogged sink now. If not, repeat the plunging process as many times as necessary.