Choose makeup water type carefully

Humidification systems operate using many water types, including:

• Potable water, directly from a city or well water source.
• Softened water, either heated or unheated.
• RO water, which has gone through a filtering process to remove most minerals, as well as some contaminants.
• DI water, which is generally considered to be the purest water. DI water is used where humidification steam must be free of minerals and contaminants, or where uninterruptible service is required.

Mineral concentration in makeup water supply directly relates to the amount of maintenance an evaporative steam generator requires. As mineral concentration increases, so does maintenance. Environments that require a humidifier to be continuously online use demineralized (RO and/or DI) water.