It used to be more true, when straight chlorine was what was used. Now most municipalities use chloramine, which is more stable. Most plants don’t care, but it’s an issue for fish, so there are “water conditioner” products for aquariums that remove both chlorine and chloramine.
If this is a legitimate concern, my grandmother used to tell me to boil the water and then let it cool down, this will remove the chlorine.
I’m always done it I’m not sure if it actually helps plants much. She also said to always use room temp water
I… Is that true? Can someone with more chemistry knowledge than me confirm?
Boiling removes oxygen, I know that…
Yup it will. In fact well before the water boils the chlorine will have come out of solution.
It used to be more true, when straight chlorine was what was used. Now most municipalities use chloramine, which is more stable. Most plants don’t care, but it’s an issue for fish, so there are “water conditioner” products for aquariums that remove both chlorine and chloramine.