StormSlab is an innovative stormwater detention and retention system designed to place storage underneath the building slab. Replacing polystyrene slab formers, our tanks are available in a range of sizes to economically store the required volume with no in-slab connections. StormSlab is ideal for sites where there is a lack of space or minimal fall to public connections.Complete solutions by APDThe StormSlab system is supplied with a distribution chamber with sealed lid meeting NZBC requirements and preventing ingress of surface water. StormSlab can be configured with the RainWorx rain harvesting and reuse system for retention applications.