I had been buying MA from my local Ace store. 31% concentration for $5.99 a gallon.
While at Home Depot, I saw they had a pallet of MA and grabbed a couple two gallon packs for $10.99 each thinking it was more economical than Ace.
I was using it in the spa and I could not get the PH levels to where they needed to be based on the pool calculator recommended amounts. So I kept adding more and was going through MA fast.
I went to Home Depot to buy more and this is when I noticed the concentration on this kemtekk stuff, it was 14% only.
I did the calculation and figured out I was paying TWICE as much for MA as the Ace brand! Duh!
No wonder the levels were not reacting like they should have.
Be aware. Do NOT assume apples are apples, you have to read the labels.