SolveSAPHE (Munhoven, 2013) was the first package to calculate pH reliably from any physically sensible pair of total alkalinity (Alk_T) and dissolved inorganic carbon (C_T) data and to do so in an autonomous and efficient way. Here, we extend it to use CO₂, HCO₃ or CO₃ instead of C_T. For each one of these pairs, the new SolveSAPHE calculates all of the possible pH values (0, 1, or 2), again without any prior knowledge of the solutions.