I admit, that the water i use to boil and shave with, comes out of a Brita water filter pitcher...
I live in a 1960's apartment, ex-coal mining town, where the water comes out of the tap nice and rusty brown. I wont drink it or shave with it, until its filtered...'blinks with third eye.' JK!
The waters not that bad, but it is very hard and packed with minerals...the simple, inexpensive filtering helps alot.
Mac