Cr 3+ or trivalent chromium is a naturally occurring chemical found in soil. Cr 6+ or hexavalent chromium is a byproduct of man-made chemical processes. US EPA has…

Arsenic is present in water due to leaching from natural deposits and human activities such as petroleum production, spraying of pesticides and commercial semiconductor manufacturing…

Manganese in water can leave black stains on bathroom and kitchen fixtures. US EPA has recognized magnesium concentrations in excess of 0.05 ppm (mg/L) as…

Corrosion is the slow decay of pipes and fittings when the metal dissolves in water. Presence of dissolved gasses in water such as oxygen and…

Water is labeled hard if the total hardness is more than 7.0 gpg (120 mg/L). Total hardness is the sum of dissolved calcium and magnesium minerals…