PH is high ....need a little advice

[topnotch]

I am kind of new to this pool stuff...and still waiting for my test kit....?????

In the meantime

My chlorine has been in good ranges not too high, not too low
My CYA is a little low (about 27 or 28) i heard it dissolves slowly in the sand filter so dont jump and add more for afew days....yes
My PH has been rising and is now a little over 8...maybe 8.2
Hardness is around 230
My alkalinity seems to be in the range of 100

Am i correct to add some acid? 17500 gallons...what is a good dose to begin correction?

[Rangeball]

How did you arrive at these numbers?

[topnotch]

Extrapolation....i had the water tested at a pool store a few days ago and came up with the others from a modest quality (add the drops and check the charts) test kit....I feel pretty good about the numbers...what is your concern?

PS: still waiting for my test kit to arrive...

[duraleigh]

Topnotch,

I'd suggest you add 1 qt of muriatic. Test the next day and plan to add another quart to get it down around 7.2 or so. Results are a little variable so best to lower with multiple doses rather than a huge drop.

Download the bleachcalc. It'll help you with many dosage calculations.

Be on standby to raise your Alk with baking soda, too. Adjust pH first, however.

How does your water look?