I haven't tested it in the am before the sun hits it, but I will and post the results. I do not add bleach until the evening, when we are done for the day.

I don't know the cost saving measures (yet) because in the previous years we were pool-stored and bought $$ chlorine there. So, compared to previous years we are saving money just by buying bleach at WalMart.

I will have to add CYA soon because of our vacation. I'd like to swim for perhaps a month more, but it won't be daily since the kids go back to school right after vacation and it will start cooling off at night. We are spoiled by our warm water!

I haven't had to add the other two B's, yet. Just bleach so far.