As the pool water has a tendency these days to even out at an alkalinity reading of 50 ppm (prior to the last year or so it use to go down to 60 -70 ppm), I decided to up the calcium to 900 ppm. This has lowered the usage of acid and kept the CSI within reasonable bounds. I did recently read that taking the calcium over 600 which was the number I used before I made the change may not be good for the pool, but nowhere can I find a reasoning for that remark.
So far after two weeks at the 900 level the pool water seems to have no adverse consequences presenting themselves, and the acid usage is way down, and no need to add baking soda.
Any thoughts, I just want to make sure I am not messing up anything.
The pool numbers are as follows:
ph 7.4 (To keep wind swept iron under control, also use 5 ozs Jack's Magic "The Purple Stuff weekly - works well and as advertised, Jack said to keep it in the 7.2 -7.4 area)
TA 50 (was 70 by adding Baking Soda weekly)
CH 900 (was 600)
CyA 30 (I know some may disagree but it works fine for me with AutoPilot's PoolPilot SC-60 set at power level 2 at 36% for a 5 hour run)
Temp 78 F (can go down to 72 F if weather is overcast, and/or I turn off the heat pump pool heater)
CSI 0.17 now, was 0.16
Thank you to those that might help.