I am having a calcium buildup (discoloration of 3-year old salt water PebbleTec pool (30,000 Gal) and calcium buildup on the tiles. However, my water chemistry looks fine and can't figure out why this is happening. Chemistry as follows:
Salt: 2900 ppm
Free Chlorine: 3
Total Chlorine: 3.1
PH: 7.3
ALK: 40
CH: 270
Also, my ALK cannot keep up and I am constantly adding ALK UP. Maybe due to the TotalControl Pool Pilot adding maintaining the acid level all the time.
What can cause the calcium buildup and discoloration with low PH and low CH water? Thank you in advance.
Salt: 2900 ppm
Free Chlorine: 3
Total Chlorine: 3.1
PH: 7.3
ALK: 40
CH: 270
Also, my ALK cannot keep up and I am constantly adding ALK UP. Maybe due to the TotalControl Pool Pilot adding maintaining the acid level all the time.
What can cause the calcium buildup and discoloration with low PH and low CH water? Thank you in advance.