I am enjoying the new pool with my switch to SWG. I have not had to make any adjustments to the pool in the last 5 days since starting my SWG a week ago. My only regret is I did not make the switch years ago. Now looking at my PoolMath Numbers daily I have questions about the CSI level. First off, does it matter with a vinyl lined, steel wall, above ground resin pool? Here are my numbers for the last 5 days with the only change being the water temperature that is averaging 90 degrees with my Solar heating. I test every morning at 7:30.
PoolMath calculates the CSI at -0.73 and states that "Greater than 0.6 is suggestive of problems for all pools." Changing the numbers in PoolMath it appears that changing the CH is the easiest way to adjust the CSI. If I adjust CH to a 130 level PoolMath calculates the CSI as -0.61. My water is sparkling and crystal clear. I am hesitating to make any changes that I am not sure I need too.