We haven't done much testing afterward, but will start doing that now. I did buy 4 large containers of bleach from Walmart today, thinking they probably move a lot more bleach. (Our last bottles were bought from 2 different Dollar General stores.)

I also bought some polyquat 60%. CarlD, if you are still reading this, how much would you recommend for algae prevention and a week away? Our pool is about 5000 gallons.