Groundwater from wells and boreholes is subject to impurities picked up from rock-strata, such as iron and calcium. Mains water is additionally subject to chemical contaminants from pesticides and industrial pollution and to other impurities from the recycling process. The most common problem is scale, the solution being a simple ion-exchange softener. However to solve your own water supply problems, you often need the accurate analysis and professional chemical and engineering skills that we can provide. .