Over time, this process contributes to the purification of water under the ground near the well, where the development of the aerobic biomass is, water stops smelling of hydrogen sulfide. In addition, the well screen is constantly cleaned by backflow magnetically activated water. Plus the water, supplied to the user is magnetically activated, with a high content of dissolved oxygen, a kind of "magnetic oxygen cocktail." This limits the use of metal pipes for the construction of wells and distributing of water.