Our pH was a little low today as well as our CYA - so I added a small amount of ph Increaser and CYA (from BioGuard) at about 2:30. Now (7:30) we noticed the pool is still nice and clear, but a blue tinge (we can see it where the water comes up on our steps). Pump has been running all day. We did shock it last night with a product called Bioguard Smart Shock (that you can swim 15 min. after putting it in the water?!) I don't think we'll be using that one again...
According to a quick dip test the pH is 7.2, FC 4, TA 120, and CYA 30.
Will do a more thorough test here after dinner.
Anyway, I noticed a lot of posts with people loving their "clear blue water"...so is pool water supposed to be blue?