We recently bought a home with a gunite inground that hasn't been opened for 2 years. I've read a lot about the BBB method and read it over and over and I'm still a little unsure what exactly it is. It seems I should add bleach and borax and backing powder and then test? Or am I testing along the way,after each step. And am I adding bleach each day, or can I switch to chlorine tabs? What do most people here do?