I am getting ready to install a Hayward Swimpure SWG and I am trying to get the water balance right before it is installed and on-line.

I have a 20 x 40 vinyl in-ground pool (about 36000 gal). I have been adding Borax to raise pH and using bleach for Cl. I am not sure about what CYA and TA levels I should target.

Currently:

Cl - 2.5 ppm
CYA - 30 ppm
TA - 40 ppm
pH - 6.8
Temp - 72

I know that I need to raise pH, but if I need to raise TA than I will add baking soda. The instructions say a TA of 80 ppm is perfered.

I ran a lower CYA for the BBB approach, but the instructions say 60-80 ppm CYA.

I could use some advice.

Thanks,

Cbrecman