Hello and welcome to the forum.
Chlorine will dissipate from water after about 24 hours. Chloramine, which most water companies also add to water, will not dissipate. It must be removed or neutralized by adding a dechlorinator such as Stress Coat (the one I use but there are a lot more of them). Just make sure the dechlorinator you use says that it removes (not neutralizes) chlorine.
Also, I see your Group is "Validating". You will need to go to the email you received when you registered and click the link to validate your membership. Until you do that, you will only be able to post in the Newbie and Beginners sections. If you never received the email, check your email preferences as it may have been blocked by anti-spam software of sent to a bulk folder. You can also go to "My Controls" at the top of the page and have it resent to you. I think the link is in the upper right under My Controls.