The quality of the water used in homes as well as in industrial plants is very important. In terms of their fields of activity, businesses need water in different ways and seek water quality suitable for each area of ​​use. Therefore, there are several types of water quality, not just a single water quality, and it is both accurate and economical.

For example, in a textile company, personnel showers, floor cleaning, garden irrigation, drinking water, fabric dyeing processes, steam boiler, cooling processes and laboratory works require different water qualities. While the water to be used in laboratories should be the purest water, the water to be used in cleaning works does not have to be of this purity. In short, the fact that all waters are of the same clarity and purity is not very economic for this enterprise. Therefore, enterprises need to prepare a project according to their usage areas and surface water quality.

Among the many parameters that determine water quality is the temperature of the water. The temperature of the water affects the solubility of the gases. For example, in biological treatment of wastewater, the most important parameter that affects the process, ie biological activity, is the temperature of water. In treatment plants, the temperature of the water is usually measured in situ. In the laboratories, measurement is usually made with pH meter probes. However, the simplest method of temperature measurement uses a simple thermometer.

The quality and distinctive flavor of the water depends primarily on the temperature of the water. In general, the drinking water temperature should be between 7 and 15 degrees. The points where the temperature of the water is effective are the chemical processes and disinfection and treatment facilities besides the flavor of the water.

The vapor pressure of small amounts of volatile substances in drinking water increases as the temperature rises and produces odor. As the temperature of the water increases, the turbidity of the water increases. Further sedimentation is monitored. The density and precipitation rate of the water increases. Water gives the best taste at room temperature.