Thanks. This is very important information for me. The fact that I could not understand where in a closed water circuit appears hydrogen sulfide and sulfite. Initially, the circuit is filled with clean drinking water passed through the softening filters. At the same time, if the circuit has equipment made of stainless steel or non-ferrous metals, there is an active corrosion of this equipment. The fact that I could not understand where hydrogen sulfide and sulfite appear in a closed water circuit. Initially, the circuit is filled with clean drinking water passed through the softening filters. After a certain period of time, if the circuit has equipment made of stainless steel or non-ferrous metals, there is an active corrosion of this equipment. Of course, a small amount of organic matter is contained in the feed water and in the circuit itself. Sulfur can enter the circuit only in the form of sulfate ion. Therefore, I assumed that after removing oxygen from the water (water in the circuit can be heated to 100 degrees Celsius or more), anaerobic bacteria begin to develop. Perhaps in water is formed predominantly sulfite, not hydrogen sulfide. Nevertheless, the water receives a strong reduction reaction and, accordingly, there is an active corrosion of non-ferrous metals. Once again, thank you very much for your comment.

Published February 8, 2019 10:57 by Ivan Tikhonov