Vacuum drainage systems for grey water utilise vacuum pressure for the collection, conveyance and disposal of grey water through a piping network that can be routed horizontally or even run uphill.
Vacuum grey water systems allow collection of waste from seating platforms in stadiums without impeding the view of the lower seats as traditional stormwater drains do. The piping can run under the platform horizontally or can even run uphill till it is clear of the spectators.
Labour and material costs are reduced since the installation is generally above ground and smaller diameter piping is used. On renovation work, the savings can be substantial depending on the size of the existing facility and the length and depth of trenching required for gravity waste pipe tie-in.
Vacuum drainage systems allow existing buildings with limited drainage to be developed for use when traditional trenching and underground piping upgrades are cost prohibitive because of site or structural conditions such as post tension slab, bed rock, asbestos, high water tables, etc.