What does Langelier index mean in practice?
LSI compares the actual pH with the calcium carbonate saturation pH based on water composition and temperature.
When does it matter?
A positive value indicates the potential for CaCO3 precipitation and a negative value indicates undersaturation, but is not a stand-alone index of overall corrosion.
Which solutions are related to it?
Calculations are made from current pH, alkalinity, calcium, TDS and temperature data and verify the behavior of the installation.