old pool but taken care of over the years besides needing a paint job the last couple. Opened up fine this year with typical paint spots missing. Had a rough couple weeks with a circulation issue and let the pool go cloudy/green until part came in and I SLAM to get back to normal like I have 100x. Once clear, the pool now has terrible brown stains. See photos. These won’t brush or vacuum off and I’m finally posting because even this pumice stone eraser won’t help. What are these stains? The pool is what I’ve been told is a 35 plus year old pool with metal corrugated walls and I thought the rest of it was concrete, certainly feels like concrete. I question because I found an article online with exact same staining and stating this wasn’t staining and was the fiberglass wearing out.
Brown stains
- Thread starter nickprette
- Start date
- Jul 21, 2013
- 65,393
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Create a paste of crushed Vitamin C tablets and put it in a sock and rub it around the brown stains. If they lift then you have iron stains.