NO really quick answer since the CSI will also be dependent on temperature of your water. Jason's Pool calculator wll help you determine the correct levels once you get the TA down.
With your high CH I would suggest shooting for 70 ppm or even 60 ppm if you get the SWG and using pH as the easlily changeable parameter depending on the temp. As long as your CSI does not go much above about .3 your should be fine. If you want to get rid of the scale on your walls you can try keeping the pH fairly low (around 7.0) for about a week or three but I would bypass the solar while you did that. Not sure if extended low pH would hurt the panels but why take the chance. (No guarantees that this will work, however.)
With your high CH I would suggest shooting for 70 ppm or even 60 ppm if you get the SWG and using pH as the easlily changeable parameter depending on the temp. As long as your CSI does not go much above about .3 your should be fine. If you want to get rid of the scale on your walls you can try keeping the pH fairly low (around 7.0) for about a week or three but I would bypass the solar while you did that. Not sure if extended low pH would hurt the panels but why take the chance. (No guarantees that this will work, however.)
