Water tank

For every new house you need to install a rainwater tank. We knew that, so it was incorporated in our plans. We planned a 5000 L tank (as required by Federal regulations). North Burnett however has additional regulations, so we are forced to install a 9000 L tank. And here comes the problem...
The 5000L tank would fit nicely behind the house, below the window of the second bedroom; the bigger tank will create a problem because of its height.
So I spend quite some time today to find a solution on internet. And I think I got it: a bladder-tank (dutch: "waterzak"??). 9000L will fit nicely under the deck at the front of the house. Have a look at the website of "Wet Earth"