I drained my 7500Gallon spa, filled it back up, and got my levels to [7.2 PH, 60 Hardness, 120 Alk, 0 FC, 0 CYA]
I'm going to use bromine instead of chlorine. So I poured 30Oz of Sodium Bromide to make the reserve, then poured 2lbs of MPS. I waited an hour. BR/FC raised to 6. I had wanted to get to 10-12.
I was out of MSP, So I poured about 8oz of sodium hydrochlorite evenly. I re-measured an hour later and my PH levels were off the chart [PURPLE], but my BR/FC was at 12.
My water also appears more green than before (slightly green).
Is all this normal? Purple PH and 12 BR mixing MSP and Sodium Hydrochlorate? Will the PH go back to normal and my BR naturally go back down to maintenance levels?