Calgary water pressure

[lastlight]

Hi folks. I'm thinking of buying the "Water Saving 150 GPD RO Upgrade Kit" from BRS when I purchase my ro/di and I was wonder if anyone else here is running it? I want to run it without buying a pressure booster if possible and the website says it requries 65 PSI at the first membrane. Anyone know what pressure they're getting at their first membrane?

Not sure if the area of the city influences it much but I am in Evergreen in the south.

Thanks!