- Jun 23, 2024
- 69
- Pool Size
- 21000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
New pool with the pebble still curing. Pool
Company left me some test strips (I know…) that has Total hardness but not Calcium hardness. Have my TFP Pro kit ordered but not here yet
Looking at the first 30 days chemistry from the Pebble company, it gives a Calcium hardness target. Wondering if there’s anything I can do to figure the Calcium from the Total in the interim? Saw some things about dividing total by 1.5 to estimate calcium but saw other things elsewhere and wanted to check with you all.
My Total is now at 120 (and if I do use that calculation my Calcium is 80. The pebble guidance says calcium should be 150-250.
Thanks everyone!
Company left me some test strips (I know…) that has Total hardness but not Calcium hardness. Have my TFP Pro kit ordered but not here yet

Looking at the first 30 days chemistry from the Pebble company, it gives a Calcium hardness target. Wondering if there’s anything I can do to figure the Calcium from the Total in the interim? Saw some things about dividing total by 1.5 to estimate calcium but saw other things elsewhere and wanted to check with you all.
My Total is now at 120 (and if I do use that calculation my Calcium is 80. The pebble guidance says calcium should be 150-250.
Thanks everyone!