Sounds like Chlorine is the way to go.

So how does adding bleach before I drain the pool help? Wouldn't it just add more Chlorine to the overly-chlorinated pool?

In any event, I am going to drain and refill tomorrow. As a general rule, how much Chlorine would I need to add initially and add each week? Or should I just try to use household bleach?

My wife is probably going to be pregnant soon but needs the pool for therapy, so anyway to lower the amount of chemicals would be welcome. I am not someone who freaks out of things like this, but I also think its always better to minimize chemicals if I can.

Thanks for all your help.