Pretty much, yes. It depends on how much water and how much chlorine to determine the time frame.
I have a hot tub that I treat minimally because right now tree frogs are breeding and they get under the cover to make froggy love in my spa. haha
I only use about 1/6th of a cup per 400 gallons and at this rate it will dissipate weekly.
Actually it’s city tap water. I’ve assumed that if you can smell the chlorine, it’s still in the water and I’d prefer to minimize the amount of chlorine I drink. This is at work, so I don’t control the intall-a-filter option.
A friend of mine works for the water department. She told us the chlorine should be undetectable in water that has been in pipes for three or four days. By the time it gets to my house, it’s undetectable.