Ben
Since I'm not sure about what kind of metals I have how do I go about this? I got some blueish patches in some spots and the walls have a light brown tinge to them. When I did the ascorbic treatment the floor got a little cleaner and so did the walls, but the blueish stains seemed to remain untouched. So how do you go about figuring out where the metals are coming from? I have a pool heater (raypac) not sure if the heat exchanger is copper and I all of the screws in my lanai are rusting, so it's possible some might be coming from that. I'm in the middle of replacing the screws right now.

Also, if I understand the reading I've done on the site the metals will always remain in the pool, so what does one do if this is continual problem? Do you keep adding sequesterant on a monthly basis. What if it's in my water supply? We have city water not well?

Thanks for the advice