+1 And welcome to TRT. Well....+1 on AZ's comments, not that I am a treatment expert with 35 years experience :lol:BS.
Never even consider tap water no matter where you live.
I am a water treatment plant supervisor and operator by profession with over 35 years experience and while I would not hesitate to drink tap water anywhere in the US I would never even think about putting it in a reef system.
You want consistency and you will not find that out of the tap, too many variables over which you have zero control. Its not just the treatment plant you have to woory about but the pumping, transmission and distribution systems too. All it takes is one broken main down the street, or a backflow incident to wipe out your tank and you wouldn't even know why. Its not worth the risk.
If you are serious about the hobby, do it right the first time and you never look back.
Yeah, a lot of our water comes from the Colorado. You ever been over there for water sports? It spots so bad on boats and gear they make a special cleaner called DUCKY just for the hard water.Wow, I never knew that! I thought it was just my water... now I know why it always shows up in the 200s on my tds meter