It is citrus acid for Ascorbic Acid Treatment - Further ReadingHi I just received this cleaner to add to the pool has anyone had any experience as it suggests you need to clean the filter after use thanks
another posting said to use shock to remove the stains
It sounds like you have iron in your water and iron staining is returning that is not a chemical imbalance the only way to get iron out of the water is to drain it once it is in solution or you can try and filter it with polyfillHi so the bottom stain is coming back could it be an imbalance in the chemicals I checked and all appears to be good do I need to run the pump longer daily