Culligan soft water provides for easier maintenance of a humidifier. When hard water
is evaporated, the mineral residue consists of a hard scale which normally
requires some drastic treatment for its removal. When soft water is used, the
residue is commonly called soft and can usually be removed by flushing the unit
with water or going over the surface with a brush.
Remember, softening water does not reduce the total amount of minerals
present; ion exchange softening exchanges the calcium and magnesium hardness
causing minerals with sodium minerals. The most common humidifier in homes has
an open pan, a small tube connected to a water source, and float valve. When
water evaporates, the float valve opens to permit make-up water to flow into the
pan. Eventually this type of unit fills with minerals deposited by the water.
