<P> Boiler water treatment is a type of industrial water treatment focused on removal or chemical modification of substances potentially damaging to the boiler . Varying types of treatment are used at different locations to avoid scale , corrosion , or foaming . External treatment of raw water supplies intended for use within a boiler is focused on removal of impurities before they reach the boiler . Internal treatment within the boiler is focused on limiting the tendency of water to dissolve the boiler , and maintaining impurities in forms least likely to cause trouble before they can be removed from the boiler in boiler blowdown . </P>
what is the purpose of boiler water treatment
removal or chemical modification of substances potentially damaging to the boiler