Does the cooling water of the thermal vacuum test chamber need pure water?

In the thermal vacuum test chamber, cooling water does not need to be pure water. Generally speaking, deionized water or tap water that meets the water quality requirements can be used. However, if the requirements for water quality are very high, such as in some special experiments or applications, pure water or ultrapure water is required. This is because the ions and other impurities contained in water may have a negative impact on the performance and service life of the device. In this case, the use of pure water or ultrapure water can reduce these negative effects and improve the service life and performance of the equipment.