I get backup test results from the local pool store, Patio pools & Spa's of Tucson AZ. Maybe I shouldn't!
They are recommending I use their product, Biogard "Balance pack 100" to raise my Total Alkalinity, but I use Arm & Hammer Baking Soda. The representative said "Oh this is much more powerful than Baking Soda, if you used baking soda you would have to use 3 times as much." The Biogard bag says "Sodium Hydrogen 100%" on the bag.
These are the same people that said "Oh please do NOT use household bleach in lieu of pool chlorine, it could make swimmers sick!"
I'm calling BS on them ((again)), but I just wanted to double check with the experts here.
So what do you say?