Does Alkalinity Cause pH To Increase Faster?

[medvampire]

Jim
If I may add to this discussion. I guess this is over simplifying but the way I look at ALK and pH they are tied together like 2 balls with a rubber strap between them. If you have a high ALK the pH will slowly want to rise to equalize to the ALK. If you have a low ALK the pH will fall to equalize as well. The pool is trying to reach a point where you have equilibrium between ALK and pH. When the pool reaches this point the pH will not move as much and we have achieved the best buffering capacity for our pool. pH and ALK are not the same but are linked. Remember pools are like people and each one is different so in my pool I have found that if I keep my ALK around 80 to 90 I do not use as much acid. If I let my ALK rise above 110 or so I have to adjust more.
Click for larger pic.
Steve