The water is fine, but the sink usually isn‘t. The sinks are just as contaminated with bacteria as the toilets themselves —- sinks in really busy restrooms are constantly damp and allow bacteria to grow more than one would expect.

You're not drinking from the sink though, but the tap. The tap is also constantly wet in every house and we're never cleaning inside it. On the other hand, my kitchen is not getting cleaned with heavy antibacterial chemicals multiple times every day.

Are you sure the taps in commercial restrooms would have more bacteria?

> Are you sure the taps in commercial restrooms would have more bacteria?

Some mouth to tap action at the fountains might even the odds abit too.