What is the best way to get rid of metal rust stains on the bottom of the pool from metal brisles that came off of a brush I was using to clean the edge of the pool? I didn’t notice them until they rusted and then I immediately vacuumed them up.

Question:

What is the best way to get rid of metal rust stains on the bottom of the pool from metal brisles that came off of a brush I was using to clean the edge of the pool? I didn’t notice them until they rusted and then I immediately vacuumed them up.

Answer:

These type of stains can be removed using an ascorbic acid based product or phosphonic acid based product. The issue might be getting the chemical to stay in place long enough to affect the stain. Applying to the brush and brushing directly on the stain may work for fresh stains. For mild stains certain treatment chemicals are provided in a type of mesh bag that can be placed directly on the stain in order to treat it without being totally diluted by pool water. The treatment can also vary depending on the surface of your pool so make sure you choose a treatment that will not damage or bleach your pool surface.

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