Water-cooled radiators are not to be refilled. Unless artificially caused leakage, in which case the entire circulating fluid module needs to be replaced.
Usually speaking, the basic service life of the first-line brand water-cooled cooling weapons in about five years, during which there will be a small amount of liquid evaporation, generally as long as it does not exceed 15%, basically will not affect the normal use of, coupled with current computers are also generally three to five years of life, so we use water-cooled radiator, do not at all consider the issue of changing the water, private dismantling will only damage the water pipe, resulting in said cold Liquid leakage, which in turn affects the use.
Usually, a water-cooled radiator consists of a water-cooling block, circulating fluid, water pump, pipes, and a water tank or heat exchanger, which is a lot more complicated than a regular air-cooled radiator, and its biggest benefit is that it significantly improves the heat dissipation of the CPU or graphics card.