In point of fact, it's not quite as simple as lots of BS = pH of 8.4
Take for example the pond of our member Steve Joneli (Birdman). His pond swung from over 9 in the AM to over 10 in the PM -- no matter how much muriatic acid and/or BS he added. See his thread (especially post #99):
I Need Help Please
His problems were complicated by a green water (algae) problem.
His solution included not just BS, but also calcium chloride and epsom salts (magnesium chloride) -- as well as knocking down the algae problem with PP and UV.
Seems nothing in this hobby is as simple as we'd like it to be.
