I’ve lived where tap water tasted like shit, not quite literally but eveytime I went home I’d have to remember not to drink the tap water. Eventually that town got a better water treatment plant but I can sort of see it from that angle. We always had the big 4gallon jugs (again may not be correct but the bigger jugs that sit on top for a dispenser) for regular drinking water

Thankfully where I moved to (many many kms away) the tap water was awesome, don’t live there now but I still do tap water over filtered for the most part. Never seems that much worse so may as well.

Really the only reason you’d drink the other tap water was cause you’re hungover…also been there. Then you remember that there’s a water dispenser somewhere in that house cause no one drank the water from the tap in the town. Even the better water wasn’t great but still noticably improved.