Dark spots in pool

yweather

New member
Aug 14, 2024
1
dallas tx
Ive been taking care of our pool for a few months now, and everything was fine until we had a fire in the pool timer box the same week we had roof work done. Pool wasn’t circulated for about 3 weeks as it took time for someone to fix it.

What are these spots? Im brushing daily, I’ve shocked it twice at double amount, Ive put x3 bottle of Black Algaetrine, Ive tried scrubbing spots with chlorine puck…. Nothing is working.

Please please helpIMG_4776.jpegIMG_4777.jpegIMG_4778.jpeg
 
Welcome to TFP.

Mark a paste of vitamin C tablets in a sock and rub it on the spots and see if it lifts. If so, you have iron staining.
 
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