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After our pool company opened our pool this year, I noticed a stain from one of the two return lines to the pool floor. I figured it was organic, but when it didn't go away I put some AA in a skimmer sock and rubbed it along the stain and the entire stain lifted. I have been puzzled why it...

In a previous post I received some recommendations for my plan to open the season (PA) with an AA treatment to tackle some iron staining that is mostly on the steps and in some random places along the walls. The pool is concrete/plaster. I checked under the cover and the heavy snow and ice on...

Hi everyone, I live in southeast PA and am getting prepped for opening the pool in May. We have some iron staining on our pool steps and on some of the walls. I did a small spot treatment test last year to confirm. I have read the Ascorbic Acid Treatment - Further Reading article many times and...

Last year, the forum helped me know that my SWG was working by the diagnostics. I just needed to start the pool season with a SLAM and we were good all summer. This year, I started off with a SLAM, the pool is crystal clear, and I have turned the SWG back on. The power and generating lights are...

Hello all, Thank you for taking the time to read this. We opened our pool on Monday. This is our 3rd season since buying the home. The pool has a Hayward T-9 cell. Unfortunately, the cell doesn't seem to be producing chlorine. I ran the pump for three straight days and tested each day at...