So.. I received a water report from Murphy & Son, but it doesn't provide an amount for sodium. Is it possible to calculate the sodium from the other values? These are:
Ca 15.12ppm, Mg 2.24ppm, SO4 11.24ppm, Cl 20.5ppm and HCO3 53.68ppm.
I'm guessing not.. Does anyone know of a lab that does...