I am in the process of slamming my pool for the first time. I'm working at keeping the FC at 16 right now ( based on a 43 CYA ) and I tested the pH just to see where it was at. It is well below 7.0 as it was a bright yellow. I had previously brought this up to 7.3 before beginning the slam. My question is if I should add some borax to correct the pH or what until the slam is complete? BTW the pool looks as if it is filled with blue milk.