IfIf the source water ...

If

If the source water contains oxygen and the pH of the water is more than 6.8, thesoluble iron will oxidize on the resin and reduce the ion exchange capacity of the resin. Oxidation of 1 mg of iron requires only 0.143 mg of oxygen. If the amount of iron in the source water is more than 0.5 mg/l, it is better to install a system of pre-removal of iron. In theory, if the water is acidified before softening to obtain a pH water of less than 6.8, i.e. having only the soluble iron in the water, it can be removed on the ion exchange resin without loss of exchange capacity. I think it might work for artesian water.