Curious that the Taylor iron kit didn't pick up on it.Iron in the water will turn very green when chlorine is added to it. Sometimes you get lucky and at SLAM levels, it'll actually precipitate the iron out of the water and the filter will catch it. But, that doesn't always happen.
On large plants, I see a once through system, so the incoming water is all treated as it enters the plant and not recycled through the tank. You want a pH of at least 7.2 with a target of 7.5 to 8.0. With this, you don't really see an increase. Recycling around a pool would probably need to be answered in how much air is needed. I have a calculation for that somewhere.Pchase,
I am not sure that method is practicable for pools. The aeration drives out the iron by precipitation, but what really happens is the air drives up the pH of the water and it is the high pH that precipitates the iron.
I imagine it drives the pH so high that now you have what might be an insurmountable pH issue in your pool.
Yes, Iron can tint the water green. Really it's pale yellow-orange but the blue pool makes it look green.
People have had pretty good luck lining the skimmers with paper towels or polyester pillow stuffing. When it gets all rusty, throw it away.