I've had the kit since May.. Date code on bottles says 2023 and it's been in a dark closet closed up. Std and high pH solutions are 2 separate bottles so I'm hoping both wouldn't go bad, not sure.
The pH before treatment was 7.4 to 7.6. about a week after treatment it was back to 7.5, it actually went down to 7 and slowly rebounded to 7.5.
