Certification Corner.

The oxidation process using chlorine will also consume Further addition of chlorine will produce a chlorine residual that's directly proportional to the amount of chlorine added beyond the breakpoint. If just a little more chlorine is added, the chloramines are destroyed and breakpoint, the point at which a little more chlorine will begin to produce a free available chlorine residual, has been reached. A water molecule is formed of two atoms of hydrogen and one atom of oxygen bonded by polar covalent bonds. [Extracted from the article]