[FeatureRequest] Calculated chlorine ppm from the pH and ORP

[wilsto]

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like Be cool if it did a calculated chlorine ppm from the pH and ORP.

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context https://www.researchgate.net/figure/Relation-between-free-chlorine-concentration-ORP-and-pH-Source-Santa_fig3_320755351