Green Pool during Stain Treatment

[BobbyC]

Thanks for your reply. I put the recommended dose of Metal Free in and I thought I had enough, but perhaps it wasn't. I will add more. Your advice sounds good, so I will try as you say. Yes, I do have a sand filter. I have already added a whole bottle of Polyquat. Should I add more? How much and when? And one thing I don't quite understand. Why did the pool turn green right after adding chorine? Just coincidence?

[mbar]

You don't need anymore polyquat. Your water may have turned green when you had high ph and added high chlorine. The sequesterant probably kept the metals from falling out onto the surface of the pool. Just a chemical reaction - hopefully you don't have algae, but if you do the chlorine will kill it. The chlorine can also just be getting used up getting rid of the vitamin C. How does the water look today?

[BobbyC]

It turned from green to crystal clear in about 8 hours! I dropped the pH and I think that made the difference. I also added some more metal out and am adding lots of bleach to bring the CL level up. Looks great now! Thanks for your help.

Bobby C.