After doing a metal stain removal treatment, adding a sequesterant and re-balancing pool I am have a daily struggle with the stains reattaching to the pool surfaces. Each time this has happened the pH has been at 7.2 or below and my FC level has been at 5-6 with a CYA of 70. The instructions for the sequesterant say a maximum safe level is set at 1 Litre in 50000 litres. My initial dose was 270mls for our 27,000 litre pool and thereafter I have been adding 135mls almost daily to remove the...
Question re Removing Metals from Filter Using Acid
Question re Removing Metals from Filter Using Acid
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