As always I appreciate any assistance that is provided! Thanks in advance.
Last year I fought with metal staining (specifically iron) almost all year long. I tried an Ascorbic Acid treatment multiple times. The stains would lift off the surface, only to return when I would try to raise the FC back up. I do not have any of my numbers from last years testing ... I believe I burned them in frustration
Now this year, I opened my pool to a green mess. I promptly shocked the pool by raising the FC to above 18. It took a few days, but the pool now looks crystal clear. So far, so good.
My fear is that I'm going to do something wrong and I'm going to find the metals staining all over my steps again.
I've attached my testing numbers so far this year and would WELCOME any advice for next steps.