Yeah, chloramine does not evaporate and does not hurt plants in small quantities.

However, a whole-house carbon filter for your H2O is about $100 at Home Depot and takes a couple hours tops to install on your incoming water line. It makes your water drinkable and is better to wash dishes and shower with.
Dorje113 Reviewed by Dorje113 on . CHLORAMINE? OK I just realized yesterday that the last 7-8 months or so I've been watering incorrectly.:( I'm a soil grower and I have been using nice clean tap water and preparing it (minus nutes) 48 hrs ahead of use! But with me being a nubie I was putting the cap on the gallon jugs as soon as I was done prepping the water, therefore not allowing the "chlorine" to evaporate! When I was told about the 24-48 hour thing, the person who told me said it was about light penetration and time, and what Rating: 5