I did the ascorbic acid treatment for metal stains over the weekend. Over the past week I let the chlorine drop to zero, and added a quart of Polyquat-60 last Wednesday when the chlorine had dropped to the minimum for my CYA.
I added the ascorbic acid Friday evening and let it circulate overnight because I didn't see a lot of effect. Saturday evening I tested the water and added Metal Magic and a bit later added a pound of borax to start bringing up the pH a little, as per the instructions. Although the stains were still there, the water was still very clear. The instructions on the Metal Magic bottle indicated a dosage of 1.5 quarts for my pool, but the ascorbic acid instructions said more was better than not enough, so I added 2 quarts.
I woke up this morning to a pool that was incredibly cloudy. Can't see the third step in the shallow end hardly at all. It's very white, not green at all, and if you look closely you can see very fine white particles floating about. The pump has been on since Friday and the pressure has risen by 2-3 psi since this morning.
I also added 4 pints of 10% chlorine this afternoon and another pound of borax, but this was after the cloudiness occurred.
Do you think I got a bloom started and the Polyquat-60 killed it? If so, should I add the remaining quart of Polyquat-60 I still have on hand? According to the instructions for the ascorbic acid treatment it seems you're not supposed to shock for a couple of weeks under any circumstances.
I'm just dashing this off in hopes of getting advice on adding the additional Polyquat-60. Or maybe hearing that this happens sometimes with the treatment and that I should just be patient. But I can give more information if you can tell me what would help.