How long does it take for the added chems to do their job? Chlorine is not an issue, test, add and it is there. I am having a problem with Acid, and PH Increaser. We have a 9000 gal pool. I have a program where I put in my test numbers and it recommends the correct dose. How long do I need to wait to get a new correct reading? Same with PH up, said add 3 cups (was VERY low), how long does it take to take effect?

Another thing. When alkalinity is high and you add acid, how long does it take to work. I figure my pool turns over in three hours, is that long enough?

Dan