A blockage in the sink must be cleared in a timely manner, otherwise you will have a lot of problems later.
We'll tell you about two simple ways to clear blockages.
How to Unclog a Sink
If the blockage is not very strong, regular washing powder will deal with it.
Fill the sink with hot water, wait until it drains, pour 5 tablespoons of powder into the drain hole and leave for 15 minutes.
Then we fill the sink with hot water again, wait until it drains, add another 4-5 spoons of powder and leave for a couple of hours.
After this time, pour hot water over it and the problem will be solved.
If the blockage is severe, caustic soda will help. Pour a solution of caustic soda (3 kg per 10 l of water) into the sink, leave for 4-6 hours, rinse with plenty of water.
Since the chemical is extremely corrosive, eye and hand protection must be used when working with it.