I just replace my liner so all of the water is new. It is groundwater. All I have added is chlorine. The calculator says it is not for setup.
There didn't appear to be any combined chlorine.
I've maintained the pool for about 4 years now. The PH and TA stays really constant. I know that the PH and total alkalinity play against each other. I was hoping you guys could get me started balancing this thing out.
I'll probably leave the CYA at 0 and watch the chlorine for a little while. I may want to take some water down and work on a light when it warms up some.