When I use stain removing products (like Jack’s Magic) that contain phosphoric acid, I have trouble keeping a chlorine balance in my pool. Is there some type of interaction going on here?

Question:

When I use stain removing products (like Jack’s Magic) that contain phosphoric acid, I have trouble keeping a chlorine balance in my pool. Is there some type of interaction going on here?

Answer:

There may be an interaction going on. When using phosphoric acid based stain removal products you may want to try adding a phosphate remover to see if that helps lower the chlorine demand. Phosphates will also feed algae in your swimming pool if an outbreak occurs.

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