Reader Questions – Guitar Humidifiers

From follower Bryan G, Is it necessary to use distilled water when filling the guitar soundhole humidification devices such as the dampit® and why or why not? Tap water will work just fine in an acoustic guitar humidifier. The issue however is that the calcium, magnesium and iron found in the tap water will form scale over time and block the humidification activity sites on the device. This will cause the…