I put the 3rd box of borax in 4 hours ago. The PH is now between 7.6 and 7.8. The chlorine seems a little lighter but is still bright orange. When I start to add chlorine after it's in the correct range, should I use bleach instead of the skimmer tabs? and can you tell me how much? I'm going to peruse your site now to see how to use the 3 B's. Continual thanks!!