I have been using a Stenner pump and 15 gal blue tank this year and I couldn't be happier with the results but I noticed when I started to refill my tank today that the little bit of bleach that was in the bottom of the tank was a milky white color. I have been careful to not let any junk fall into the tank and have only been using 12.5% from Menards. The pool is maintaining the correct level of chlorine so it doesn't seem that the chlorine is breaking down but I am at a loss to figure it out.
I have emptied the remaining bleach and rinsed the tank with distilled water to clean it out.
I am just looking for some ideas as to the cause since nothing came up in a search of this board or Google for that matter.