I am new to GWB and I require some assistance with Durov Diagrams. I have successfully produced a durov diagram for some insitu waters, however, the issue arises when I try to adjust the TDS axis. The TDS maximum is set to 11,000 mg/L with 1,000 mg/L increments, yet, when I set a maximum of 1,000 mg/L (ideally I would set a maximum of 1,500 mg/L) with 100 mg/L increments nothing happens (even after clicking apply and/r OK). Have any of you have any experience with dealing with this problem?. Attached is the gss for this exercise. Any help would be greatly appreciated.