I think I found out what I did wrong when I sent my original reply to your very first response to me. I think I hit the reply to thread button again to send my reply instead of hitting the post quick reply button! I just did it again.

My pool is around 18,000 gallons. So how do I calculate how much bleach to use? How often do I add?

I just ordered my Taylor K-2006 kit. Pool Supply World had it for $45 with $8 shipping.

Thanks,
Diane