I run Orca and Hydroguard with tap water and it does not affect the bennies as far as I can tell.
If you are really worried there is some shit brewers add to the water to get rid of it.
Sodium Metasulfate or something like that. It might be potassium haha but check it out.
You can order a water quality report that will tell you if it has cloramine.
I have very hard tap water and I used to just let sit for 24 hours with some air stones going.
Reverse Osmosis is always better for a couple hundred bucks you can get a simple R/O System
Go to your towns web site and find the water report. It'll tell you what's in it, then you can figure out what to do. Hydroguard works fine in tap water once you remove the chlorine /chloramine.