The strength of the bacteria is it multiplies very rapidly. The weakness is its very short life. The traditional chemical treatment method uses biocides to kill the bacteria They get resistant to it, which makes it difficult to control. A radically different approach is followed by ULF treatment. The ULF waves make the bacteria incapable of multiplying. Since the life is anyway short, they die naturally. If they cannot multiply then there is no further growth of these in the recirculating water. Hence the water in basins as large as swimming pool is so clear that you can see the bottom. This is a dream made possible by a using discs of ULF Emitters which are immersed in the cooling tower basin. They emit the ULF waves and keep the water clear of bacteria and algae, without a drop of chemical.