Distilled, deionized, demineralized, desalinated, or good old fashioned tap water? Given the many different water options to use in your dental unit, it can be perplexing to know which one works best. Should you use the artisanal water filtered through ancient volcanic rock deep beneath Mount Fuji, or will simple municipal tap water suffice? The confusion arises from the dual requirement that the dental office wants to ensure a clean supply for anti-microbial treatment that also works well with the dental unit components. A brief background assessment of the most common water types will help to clarify your practice needs. Read our full article to find out what we recommend you use to disinfect your water and to test your water.