Is a program for irrigation equations. Follow the site water2irrigation. The equations that are performed are: Ion Balance T.H Sodium Adsorption Ratio(SAR) Sodium Adsorption Ratio Adjusted(Adj SAR) Soluble Sodium Percentage(SSP) Residual Sodium Carbonate(RSC) Potential of Salinity(PS) Magnesium Hazard(MH) Permeability Index(PI) Kelly's Ratio(KR) It also checks the : Ion Balance T.H TDS Or Ec PH COD BOD5 E.coil coliform(T.C) Alkaline And account Expected Yield.