@PaulS
His pin which is named "Analog" I assume gives him the analog reading from the Arduino. An Arduino does not read salinity as I assume he would need. Therefore, the function for "Sal" gives him the analog reading in a percent which can be read with more ease. So, paden_sparks "Analog" is a decent name for what you are trying to do. Correct me if my assumptions are wrong paden_sparks, but if they are right, PaulS you are getting worked up and making yourself a fool for arguing something you do not understand.
paden_sparks what I think you should do is refer back to "Morris Dovey" like you just said. This will clear up a lot of the clutter and repeating equations.