New pool owner with an EcoSmarte system. I am having problems with dark stains appearing on the bottom of the pool (painted concrete) after the system is on for a couple weeks. Water is nice and clear but the pool looks terrible. The Pool contractor thought it was a paint issue and drained the pool and cleaned the bottom with acid and the stains were gone. He painted the pool again just to make sure. Now that system is going again (for about a week) water is crystal clear but the stains are starting to come back. Any idea what is going on.
Mark,
Sorry to hear about the staining problems. More information is what is needed here, and the most timely method of doing that is calling the guys at corporate 800-ION-SWIM. They will be asking you the following questions, plus a few more:
What color are the stains?
What is the pH of the pool?
What is the copper level?
What is the hardness level?
Is anyone putting anything in the pool (like chlorine, stabilizers, clarifiers, etc.)?
A balanced pool will not have any staining problems, and the only issues I knew about with concrete pools have to do with pH - but the guys at corporate are the experts. Copper could be precipitating out due to high pH or too much copper or incompatible things added (like chlorine). Or the stains could be algae if they are a different color. Call corporate - that is why they are there, 6 days a week Minnesota time. Tell us how it goes!

