Запах из канализации. Как устранить своими руками

Sewer odor. How to eliminate it yourself. By installing an extremely inexpensive aerator, you eliminate the odor. However, it's not a panacea, as sometimes the odor still leaks out, perhaps due to the large volume of water flowing down the riser, and the aerator simply can't cope. If this is the case, you need to contact the housing office and request an inspection of the riser on the upper floor. If they haven't made any structural changes, then they simply need to clean the sewer riser (there's a blockage somewhere).