When the pH of water is greater than pHs ( saturation pH with respect to CaCO3,) the water cannot accomodate any more CaCO3 and it precipitates & gives up as deposits on the surface of pipes or the carrying medium of such water. Scale is thus formed. LSI value is positive.
Published by Sandeep Pandharkar, Consultant for Engineering, Procurement & Construction for Water & Wind projects
When the pH of water is greater than pHs ( saturation pH with respect to CaCO3,) the water cannot accomodate any more CaCO3 and it precipitates & gives up as deposits on the surface of pipes or the carrying medium of such water. Scale is thus formed. LSI value is positive.