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My vinyl liner was mostly a dingy brown color so I tested with ascorbic acid and determined it was iron staining. I used Metal Magic exactly as directed and within the prescribed 48 hours the liner was a beautiful aqua color again. Awesome ! The pool never got cloudy and looks great. Problem is...

I’m a long time pool owner and have experienced most everything that can go wrong. I have an 18 x 36 I ground pool. The last 2 seasons I’ve experienced algae on the liner walls and floor. I shock it, vacuum the Crud out of it, but leaves some greenish areas in the floor of the liner that don’t...

I’m a long time pool owner. 18x36 in ground. Always felt if chemicals and PH are good , algae won’t form. But now have green algae on the liner and chemicals look good added some shock last week , but this week it looks worse. Lots of heat followed by couple inches of rain around here. Looking...

I recently completed the ascorbic acid treatment as described in this sites thread. The results were amazing. The ugly brown iron stains are totally remove and the liner is blue once again. I am now bringing the chlorine back up slowly as directed. I don't know if this is a side effect, but I...