Remember Purified water is not distilled water Autoclave must adopt distilled water as operation medium. Even Purified water has various minerals,and can prouce furiing scale after evaporation at high tezmperature,which,after a period of time,can lead to leaking of steam due to improper closure.It can also lead to the clog in the narrow pipes and pressure sensor,to the malfunction of temperature sensor and to other failures.Once the furring scale enters handpiece and other instrument which are hollow inside or has apertures,It will clog the narrow pipes and axis,lowering the tuming speed of handpiece,thus reducing its life span.Therefore,using distilled water is necessary.But since all the stomatology clinlcs are located far from each other,It is difficult for them to buy distilled water.Now with DRINK provided,you have a reliable source of high quality distilled water as long as you input pipe water isn't is simple.