Calgary Water - first fill

[Delphinus]

What does the water softener do or I mean how does it work. If it adds something then I wouldn't use that water. I could be wrong but I thought softeners did their thing by adding some kind of epsom salts or something.

If it's a RO filter however then Hoo yeah! You're set.

It sort of depends on whether you want to use raw tap water or not. Some people use tap water with no ill effects but most people tend to eventually gravitate towards RO or RO/DI.