How to competently choose a chemical for cleaning the pipe
If a fat cork is formed in the pipe, then they buy a liquid agent. You use it for a couple of applications, but this type of household chemistry is created for emergency cases.
Previously pour the product at night, and in the morning take the result.
If plastic pipes are installed in your apartment, we recommend that you purchase special products that carefully clean up. Often they have a pleasant unobtrusive aroma and have a higher cost.
The composition contains a word "assets"? So, household chemicals that do not require a long time to influence the blockage. Poured for 20-30 minutes, after which it is washed off with warm water.
Follow the rules of cleaning the pipes: use rubber gloves that protect the skin of your hands from chemical harmful effects.