Using the "PoolEquations" Excel spreadsheet I am trying to determine what would the "Calcium Carbonate Precipitation Potential" be if the numbers looked as follows:
Orthophosphates 2000 (ppb)
Temp at present 78F (to max 84F and an average of 81F)
Carbonate Alkalinity (ppm CaCO3) 92.0
Is the "Calcium Carbonate Precipitation Potential" number OK or should one or more of the above be adjusted, and if so to what figure(s)?