Cooling towers are effectively big packing containers created To optimize evaporation of water.  To do that, they contain content, typically PVC plastic sheets, that create substantial surface spots for drinking water evaporation to occur.+ M?ch n??c three có c?m van bypass ?? cân b?ng n??c tr? v? nh?m ??m b?o l?u l??ng n??c ?áp ?ng ?? m?c l?u