Borewell water contains lots of unfiltered impurities including heavy metals like iron, calcium, magnesium. The concentration of these minerals is defined by Total Dissolved Solids (TDS). If the borewell water at your home is hard with a value above 700 ppm, it can be problematic to any electrical appliance including ordinary washing machines. For this reason, you need a good washing machine that can work with hard borewell water.