Bromine (hopefully) 3.0
Added 10 oz Borax (17.5 ppm Borates?)
I have had a devil of a time stabilizing my water. I started with tap:
I added CH first to 120. Then added baking soda to 110. Then added sodium bromide for bank. I put in 6 oz. for a 485 gal spa. Then I added 10oz Clorox Bleach. Both motors running, new heater, bubble intakes open (this may have been my issue).
I let that soak for a while. Tested. PH was above 8. So I added 1 oz of Muratic Acid. Waited, tested, above 8. Added 2 oz dry acid, waited, tested, PH above 8. added more dry acid, waited, tested, ph above 8. By waiting, usually 2-8 hours. Checked TA, 40. Added 2 oz baking soda, 2 oz dry acid, turned off booster pump, set filter pump to low, closed air intakes. waited, tested, ph below 7!!! panic. Added 10oz Borax, waited 5 min, tested, PH 7.5. whew. Bromine was below 1, added 4 oz bleach. woke up this am, readings as at the top.
Did the air jets have such an impact on the PH? Or is it something with the heater? Having the ph below 7 for a few hours, how bad did that hurt the new heater? Did I put the chemicals in the right order? How do I know I added the right amount of Sodium Bromide? When I added Muratic Acid, I saw yellow brown in the water which cleared up in a few minutes. What is that? Is the acid destroying the Bromine Bank?