Hi Christopher, I recommend to go for modular tanks and I have designed one for Australian market. The Hydrowall modular wall systems are connected together to form a structural walls for swater. These modular rainwater tanks comes with modern design and functionality, and can also set up underground so as not to spend any floor space on water storage. Modular tanks for external installation can be found in different innovative designs and styles, allowing you to use them as a beautification tool as well as for water storage.
