Episode Details

Pool metal stains rarely come from just one source, and this episode walks through the real chemistry behind them. 

John covers where metals and minerals actually enter pool water, why iron, manganese, and copper stain differently, and why calcium and magnesium follow the same solubility rules everyone assumes are unique to metals. 

He breaks down the difference between a sequestrant and a chelator, walks through a rare copper cyanurate case that took fifteen drain and refill cycles to correct, and explains whether salt water is actually corrosive at pool concentrations. 

The episode closes with a full, step by step remediation protocol for anyone dealing with an active metal stain right now, including when algaecide is the right call and when it isn't. 

If you've ever stared at a purple pool and had no idea why, this one's for you. 

Show notes and free resources at PoolsScientific.com. Subscribe to the weekly email list for episode updates. Ebooks available at payhip.com/poolsscientific. Follow us on Instagram @poolsscientific24. The Pools Scientific Podcast is produced by Pools Scientific LLC — Elevated Pool Care Through Science and Technology.