*or rain water

as long as its filtered for house use and such of course
I love eclectuses and if you do your research and can maintain your care (and their diet) for their whole life commitment there is no reason for me to tell you not to get one. I assume you are still at home, so it is important your whole family is as excited as you seem to be about getting a parrot. Even if they will technically and officially be yours, parrots have a way of taking over the whole household, and whether they like it or not your family members will have to play a part in that.
another thing of note is that you'll have to be prepared to wake up early in the mornings to give any parrot brekkie. for the rest of its life. even on weekends when you wouldn't have woken up anyway. Ekkies have a specific diet, and birds in general have times of the day they just seem to eat more. It is also good to keep a parrot healthy if it gets a routine sleeping pattern as well, waking up on time as well as going to bed on time is important for this.
(some parrots are known to scream for you if you're late for their brekkie, -although pickle sits there quiet as a mouse until you take his cover off, no matter what the time is. and then greets you with a "peek-a-boo") ^-^
Also, with eclectuses in Australia, (i dont know what state you are in) but you should check if you require a licence to keep one.
I know that in NSW you do, no matter what subspecies you get, but here in SA you dont need a licence unless you have the specifically Australian subspecies (which generally isnt the domestically bred one anyway), and if you own another animal on the list of liscenced animals..
Generally liscences aren't hard to get really, you just need to find the right website for your state to get the application, give them details, a little money, and say that you don't have any criminal or animal abuse history.