Good code design avoids the need for copy paste, as it usually comes back to bite you many timeskenmar said:dremin2flyhi,
Thanks! I have been a developer for 17 years. Ya know what I just realized? The importance of good copy/ paste skills. The code is similar for all the different chem levels, so I copied it... my mistake was that I did not update a variable. I left it as the calcium hardness range instead of the salt range.