Out of curiosity I tested my tapwater and it was only 20 ppm calcium . Then I got online to see what the measurements were for hard and soft water and I could not find anything that listed it in parts per million.
What calcium measurement for hard and soft water?
- Thread starter Sjde
- Start date
- Feb 6, 2015
- 6,234
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Many times you will see water hardness shown in grains
Divide ppm by 17.1 to get grains
20 ppm / 17.1 = 1.17 grains
Pretty darn soft
Divide ppm by 17.1 to get grains
20 ppm / 17.1 = 1.17 grains
Pretty darn soft