Water containing iron

Iron in dissolved form is contained in water in many cases. Water utility companies remove this iron from the water. However, in the case of certain bore well installations or springs, this is frequently not the case. The result is a brown discoloration of the water when it combines with oxygen. Seen chemically, iron occurs in bivalent or trivalent form in water. Only the trivalent iron combines with oxygen and oxidizes to form rust.

Merus changes the iron dissolved in the water in such a manner that it no longer reacts with the oxygen up to a concentration of approx. 5-10 mg of iron per liter of water. This means that no brown discoloration of the water occurs either, as long as the water is flowing. Once the water evaporates, the iron will remain, and might form again rust stains.