Sorry it took so long to reply. I think I already answered this in an e-mail from you but I will answer it again.
First let me address the naysayers.
1) To Aquatramp, Yes, it will replace a lot of water changes AND save you money AND save you time. Maybe you are the type of person who would rather wash dishes by hand and don't believe in dishwashers either ... to each his own.
2) To Aunt Kymmie, I am even not sure what you are saying with your comment? If you want to see what real people say about the product go to Testimonials
Honestly, I don't know why people insist on criticizing a product they do not own and have absolutely no experience with. If you'd rather do water changes then fine but why all the hate people???
The pump would burn out if it were a standard US pump rated 110v/60hz. However, I do in fact have 220v/50hz pumps with an Australian plug suitable for Australian use. These will NOT burn out in Australia.
About the detritus, I think I answered this before on here somewhere but I can't find it. The Aquaripure breaks down 100% of all organic material entering it into gasses and so it never needs to be opened and nothing needs to be cleaned or changed. Occasionally bacteria might build up around the flow valve or tubing but running a little hot water through it will clear it out. If you follow the directions this shouldn't happen anyways.
It is too bad about the exchange rate, I know it's pretty expensive in AUD. I think I told you I would work something out with you so when you are ready to order let me know.