he Australian designed and made Reo Sac fits under any house or decking. As the sac sits under the middle of the house, rainwater from downpipes on all sides can be collected, optimising water collection.

The Reo Sac is made from reinforced PVC and comes with a geo-textile groundsheet to buffer it from the ground so there is no need for a concrete slab underneath it. Due to the quality of the materials used, the water from the sac can not only be used for the washing machine and gardening, but is also accredited to AS4020, the Australian standard for drinking water.

Unlike other frameless bladders, Reo Sac has no moving parts, which means there is nothing to damage or break over time. The sac includes a miniature frame and mounting plate that supports the inlet and outlet pipes at the end of the bladder to minimise leakage and make it easily accessible.

Reo Sacs are available in 66 different sizes to store from 1,150 litres to 7,050 litres of water. Tanks can also be joined together to increase storage capacity. Each bladder is individually tested before leaving the factory, comes with a 10-year warranty and is tracked by a serial number.