Glossary Terms

One thousand grains. (See grain.)

The metric prefix used to mean “1000” of some unit of measure. The term kilo is sometimes used to mean kilogram.

The trade name for a patented medium composed of high purity copper and zinc granules. KDF is capable of removing chlorine, soluble metals, and other inorganic […]

Jackson Turbidity Unit

A shallow well constructed by a high-velocity stream of water directed downward into the ground.

The formerly-used measurement of turbidity in a water sample. This has been replaced by the nephelometric turbidity unit (NTU).

The accumulation of iron on or within an ion exchange resin bed or filter medium in such amounts that the capacity of the medium is reduced.

Microorganisms which are capable of utilizing ferrous iron, either from the water or from steel pipe, in their metabolism, and precipitating ferric hydroxide in the sheaths […]

An element often found in ground water. It is objectionable in water supplies because of the staining caused after oxidation (bleach) and precipitation, tastes.