4 Things to Know About Pool Phosphate Treatments

Phosphates are not a problem on their own They come from leaves, dirt, sunscreen, and even tap water. A reading on a test kit is normal and not harmful.

High chlorine prevents algae, not phosphate removal Algae need phosphates to grow, but adequate chlorine stops algae regardless. Treating phosphates is unnecessary if your chlorine level is correct.

Only use phosphate remover for persistent algae If you have algae despite proper chlorine levels, a phosphate remover (lanthanum chloride) can help. It will cloud the water temporarily and clog your filter.

Focus on chlorine and pH instead Ninety percent of pool problems come from chlorine and pH imbalances. Ignore phosphate scare tactics from pool stores.