Learn about the different types of contaminants that might put your family at risk.

A group of hydrated sodium alumino silicates, either natural or synthetic, with ion exchange properties. 
zeolite softening
The removal of calcium and magnesium by ion exchange using natural or synthetic zeolite.  The term is sometimes used to refer to all ion exchange softening processes, even though organic ion exchange resins, not inorganic zeolites, are in most common use today.
zero soft
Water with a total hardness less than 1.0 grain per U.S. Gallon, as calcium carbonate.
zone of saturation
The layer in the ground in which all of the available voids are filled with water.