taylor test kit and borax

[shawnw]

I need to raise the ph in my pool- taylor test kit only provides info for raising with soda ash and I want to use Borax- how much to use? Do I measure it as I would the soda ash? 18,000 gal outdoor in ground gunnite...

[aylad]

How far do you need to raise the pH? What is your TA? What form of chlorine are you using?

[shawnw]

TA is 130, so I was gonna lower it w muriatic acid. My ph is right on target, and I'm sure the acid will lower the ph as well, so I want to be prepared. Using swcg and last time i shocked with cal hypo was one week ago.

[Watermom]

You said in post #1 that you needed to raise your pH but then in post #3 you state that pH is right on target.

[JimK]

shawnw wants to be prepared to raise Ph once it drops after adding acid to lower TA.........have I got that right, shawnw?

[BigDave]

The process for lowering TA involves raising pH by aeration. Chemically adjusting pH with borax will bring TA back to where it was.