Response to Jacks is good occasionally but if you do it too much it'll damage the surface of your pool. I'd recommend Metal Free by Natural Chemistry. A lot less harsh and it's safe to swim in. It will eliminate the metals in the water before the stains occur.

An image is worth 1,000 words! Add an image or two to your comment to help ensure it is understood accurately.

Yes, please email me exclusive discounts, swimming pool tips and helpful how to guides. This comment may be posted on a public site. Do not include: HTML, references to other retailers, pricing, personal information, or any profane, inflammatory language.