Thanks, I am concerned but if the word is that its ok than i'm pretty happy to leave things how they. Not really keen to fork out the $400 bucks for a filter (because of course to get the fluoride out means they cost quadripple the other filters!) if its not neccessary. Theres still alot of scare mongering and resistence to it being put in the water here, personally i'd rather just stick the stuff on my teeth than drink it and shower in it but thought i'd better ask anyway just to check for little birdies sake. Wouldnt want anything bad happening to the little fellow.
Great idea about rain water btw, do you know how long it would be ok to keep it before it goes stagnant? Its raining here at the moment so I'll collect some