Need an in line TDS meter and pressure gauge today
 

My RO/DI is a bit flaky and when I called customer support they said that I needed the info these two items will give me. I know I can get them mail order but I was hoping to fill up the top off storage and do a water change before leaving for 10 days so if some one can tell me if there is a water supply or treatment store open on Sunday in Calgary ...

Charles