Heard this years ago and always assumed it was true. Figured I'd find out wot's wot...

That leaving tap water in a container overnight dispersed some of the chlorine.

Sure, I bet that would release some of the chlorine. To release all of it is another challenge altogether. I'd recommend neutralizing the chlorinated water with sodium bicarbonate, and then, if possible, distillation of the water.

 

Why do you need to remove chlorine from this particular tap water, anyway? Also, how did it get there in the first place?

Boiling the water will remove al the chlorine.

Adding bicarbonate won't do a particularly good job, certainly not at levels where the solution would be drinkable.

BTW, Elementcollector,

Is drinking water not chlorinated where you live?

I live in sunny Washington, USA, near Seattle. Considering this is America, yes, my sources of water are almost certainly chlorinated. I never really noticed it before in drinking water because I work at the pool, where concentrations of chlorine are easily detectable in and out of the water - drinking water doesn't taste anything like it by comparison.

Well, the water does taste different after you let it "breathe", at least in my opinion.