How to prepare the floor for work: what to take into account

First you need to completely clean the entire surface of the tiles from different pollution. To do this, it is better to use an acid -based cleaning tool. Apply it with a sponge to the surface and leave for ten minutes. And the places that are very contaminated, rub with a fairly stiff brush. Then rinse all the tiles with a large amount of clean water. To return ceramic tiles of shine, rub it with a cloth or a rag moistened in vinegar. Now remove the old grout. Peel the seams between the tiles using a spray specially designed for this. If there are lesions with a fungus, then treat the seams with vinegar. When the tile dries, it is necessary to apply a grout.