Quote Originally Posted by canaguy27
You are trying to get chlorine to evaporate so it won't kill your beneficial bacteria etc in your medium. However most cities have choloromines in there water which will not evaporate out. Only a decent filter will pull them out.
Half right mate.
But, a filter will not remove Chloramine.
And activated charcoal will remove odors, but also has no effect on Chloramine.

You can break Chloramine down with Ascorbic acid, or use Aquarium supplies, but unless you have fish in you res., it's really not necessary.:jointsmile:

Aloha,
Weezard