pH above 8 15ft X 48in Intex

[Pappy]

I can get Kem-Tek CYA and Clorox Polyquat 60 at the local Lowes for a kinda reasonable price. We already have several jugs of 8.25% bleach. I was thinking I'd get pool clean with bleach, then bring the cya up to 40 or so with the Kem-Tek, then, after that see what I need to do with the pH. Will it be a big problem if the pH is too high for another week or 2? How much CYA should I add to 4500 gallons at a time? I think I read wait a week between doses.

[PoolDoc]

"Clorox Polyquat 60" Clorox brand polyquat? Really? That's new.

Try to keep the pH between 7 & 8 at all times. Below 6.0, it can definitely damage your liner.

[Pappy]

http://www.lowes.com/pd_576066-1327-...ide&facetInfo=

Since I'm over 8 (unless 2" of rain lowers pH significantly) I have a little wiggle room on the lower side.

How much CYA should I add at a time?

[PoolDoc]

Very interesting -- thanks for the link. I had no idea they were doing that.

Keep in mind that Kem-Tek's product costs 35% less -- $17.99 vs $27.98 -- so if you buy ahead, you can save quite a bit.

[Pappy]

Is a quarter cup of 99% CYA a reasonable place to start if there is none in 4500 gallons? pH8+?

[PoolDoc]

CYA is about 2# / quart. 1 lb will add about 20 ppm to your pool.

So, no, that's not enough. Put about 2 cups in an old sock, and hang it in front of the return.

[Pappy]

Why not pour it in the skimmer and let it sit in the sand filter til it disolves? I need to wait a week between doses don't I?