Ben,

Thank you for taking the time to help with the copper & CYA problem. Based on the above, I have a couple of questions & comments:

1. Comment: I will be using liquid chlorine at 10% - that is what is available at my local hardware store for the best $$
2. Based on the above, how much should I be adding to the pool?
3. The HEDP & Culator products work together to remove the copper, is that correct?
4. Can copper cause a yellowish stain on the pool, or would it be greenish? I have some mild yellow staining on my liner and steps this year. I am thinking it is either from copper, calcium (since high hardness), or possibly some other chemical in the pool.
5. I have the BioGuard Algicide that is not polyquat - it is the other (I think it is termed as just quat?). What is the disadvantage with the product that I am currently using, other than foaming (which isn't really an issue in my pool)?
6. Can I just add a bunch of bleach to increase my chlorine level? There are a lot of other chemicals listed above, and I'm wondering what the benefit is to having them/using them. Specifically, the borates and the bromide are what I am wondering about.

Here are the stats for my pool this morning:

FC = 6 ppm
CC = 0 (not sure if I did the reading wrong the other day, or if it can correct itself that quickly on its own)
pH = 7.4
I am sure that my calcium hardness is still high at 420, and CYA hasn't changed, of course. Alkalinity I did not test for today, but I can go out and do that if you need that information.