Do your drains need a beauty routine?
Prepare in a container a solution of 200 ml of water in which you have dissolved 3 tablespoons of citric acid. Pour into the drain 100 gr of baking soda and immediately after the solution based on citric acid. The two substances will react immediately creating an effervescence with relative mechanical action that will free and clean the exhaust pipes. Do not worry, the reaction that will occur is safe and above all does not damage the pipes because it is natural.