Lower PH, increase CYA

[Charlie_R]

Walmart generally carries HTH brand, labeled as stabilizer & conditioner. Check the pool aisles.

Definitely use PoolMath to see how much you need to add, then put about 1/2 to 2/3 of that in a sock. Put the sock in your skimmer, or hang it in front of a running return.

 

[brasilmom]

Thank you Smykowski. I will look at those places today. Now, I was thinking of adding in liquid form and want to ask how long before the children can jump in. I may add in the evening to avoid frustration and a day without jumping in the pool!

 

[Charlie_R]

Liquid form of CYA is about twice the price, and as far as I know, is only available at pool stores. Maybe Menards might have it.

 

[brasilmom]

Oh my, when I used the poolmath, it said I will need 7 lbs to get the cya reading up to 40.... which I think it stil may be on the low side. Does that sounds about right. The volume for the pool is about 38000

 

[Charlie_R]

Yes, that sounds about right. Get enough to do the full amount, but don't put it all in at once. Best to "sneak up" on the CYA, over about a month's time. 1/2 to 2/3 of the PoolMath amount, and retest a week later. Then do it again, with 1/2 to 2/3 of the indicated again. That way you don't accidentaly overshoot and have to drain to bring it back down.