Air handling units, boreholes, decorative/interactive water fountains/features, domestic hot and cold water, drinking water, “dry” ski slopes, dry/wet (adiabatic) coolers and humidifiers, endoscope washers, evaporative cooling towers, heating systems, hydrotherapy pools, industrial wastewater, mains water, process water, rain water, renal dialysis, spa baths, steam boilers, swimming pools, ultrapure water, vehicle washers.