Help with raising ph

[ccc]

I have a vinyl pool 22,000 gal Icant get the ph up Ihave put 3 boxes of borax in and still get a 6.8 reading. Clorine is hi and alk is about 110. can anyone help ? please and Thanks

[nicole12]

What is your actual Total Chlorine reading (Free Chlorine and Combined Chlorine would be better) and CYA?

I had a problem too raising up my PH and found out that since my CYA was so high (100) it was counting towards my Alkalinity. So I raised my Alk first and then the PH started to rise after adding Borax. Seems though no matter how much I add my pool likes to be right about 7.5 for PH. I also use trichlor pucks which I've read can wreak havoc on PH.

The following thread talks about how to adjust your Alk if you have high CYA levels.

http://www.poolforum.com/pf2/showthread.php?t=3581

[gerri]

Your Alk may be keeping the Ph stable where it's at.. that's a guess from a newbie. One idea I have though, have you pointed your eyeball (jets) straight up to aerate the water? That raised my Ph for me.

[duraleigh]

ccc,

I'll bet your test only goes as low as 6.8 pH so you were probably much lower to start. Keep adding the borax....one box at a time.....it'll start to move when you get enough in there.

Alk is fine and your result of "hi" for chlorine is to indeterminate to have an opinion.