Indication of Metals After Shock Chlorination

There are many cases where we fill the pool, and after the first shock chlorination, the water turns green or brown. No, it’s not algae… it’s metals.

Remember the Statue of Liberty, which is made of copper. What color is it? Green. The green color indicates the presence of copper, while the brown indicates iron. Therefore, it is very important to know the source of the water. Usually, well water has high concentrations of metals. The first thing we need to do if we notice such a phenomenon is to either:

a) Perform a physicochemical analysis of the water in a chemical laboratory, or

b) Check the metal concentration with test strips.

Once we detect the presence of metals, we can use specialized chemicals to remove them. If stains have formed on the surfaces, then during the first fill and before we shock chlorinate the pool (when there is no chlorine in the water), we apply the specialized chemical Multi Stain Remover locally. The metals that have settled dissolve back into the water, thus being removed from the surfaces. We need to remove these dissolved metals from the water because once we add chlorine to the water, they can settle on the surfaces, and the water can change color. We achieve this by using the specialized chemical No More Metal, which binds the metals and removes them through the filter. Every time we add fresh water to the pool, we should add No More Metal so that the metals are bound and do not cause problems either in the pool or to hair and swimsuits.