Acid Question

[KurtV]

Sunny,
Assuming your 24' pool has 48" of water in it (52" high side walls), it holds about 13,500 gallons of water.

Determining how much acid to add to lower the pH a given amount is a little tricky because there are several variables. I would guess that a pint of acid would lower you pH about 0.2 or 0.3.

That's actually a very good approach to lowering ph (and adjusting other parts of your pool chemistry). Add a little, wait at least a few hours to circulate the water and distribute whatever you've added, test again, and repeat as necessary using successively smaller doses as you approach the goal.

(The exception to waiting a few hours to retest is cyanuric acid; it can take up to a week to dissolve so you have to be patient when adding it.)

[Sunny32504]

I added the acid at about 6:15 and it is now 8:22 no movement so I guess I will wait till tomorrow . I want to put shock in there but waiting for the PH to come down so it will work better . I will try again at about 9:30 and it nothing changes I will try tomorrow . I can't leave my filter running alll night because it worries my hubby because of the algea floating and he is concerned abou tpressure buiding in the filter