When it wasn’t possible to place tanks above ground or underground we had to get creative and the result was a suspended retention tank in an underground car park. 130 Ponsonby Road needed to retain 14,000L of water for re-use but had no space for above ground or underground tanks. They needed a solution that would safely store the water but wouldn’t reduce the available car parking space.
The area that was available for use, the basement car park, had limited access and a limited height in which to install a tank. APD were asked to develop a suspended tank design and to consult on how to safely and securely install the tank on site. The tank had to be able to withstand weight changes from empty to full without bending or deforming and the support structure had to be able to sustain the weight of the full tank.