Substance Ideal Range
- Salt 2500-4000ppm
- Stabiliser depends on chlorine demand
- Free chlorine 2.0-4.0ppm
- Combined chlorine <0.2ppm
- Total chlorine TC=FC+CC
- Total bromine 4.0-6.0
- ph 7.2 -7.8ph
- Total alkalinity 80-120ppm
- Calcium hardness 150 -400ppm
- Total dissolved solids <2000ppm
- Phosphate as little as possible
- Heavy metals as little as possible