Thank you - That is what I thought about the clarifier. We will just keep brushing the sides & vacuuming till it clears up. It already looks worlds better than it did when I started this thread 4 days ago.

I'll pick up some more borax and just keep adding it. For 12,000 gallons and a ph of right about 6.9-7.0 - how much is a good amount to add? I can test again in 4 hours and add more right?

What is the dosage on the baking soda too? I don't want to end up with too much TA.