Unroofed large combined wash down and rainfall catchment areasrequire a Trade Waste/Stormwater Diversion System.
Typical Rainfall IFD requires site specific calculation
Caters to Trade Waste, First Flush and Stormwater Flow rates in excess of 20.0 l/sec
FF600/150+/150+/GTI/Custom- Refer drawing – 900mm x 600mm or 900mm x 900mm Pre Cast Concrete Pit with Class “B” or “D” Grated Cover, silt retention basket and >150mm Trade Waste and >150mm Stormwater outlets
This option provides for collection from Grated Trenches in the wash pad with wash water to be directed to Trade Waste, programmable volume of First Flush of rainwater (after any wash event) arriving on the paved catchment being directed to Trade Waste, with any further rainfall being directed to Stormwater
The system auto resets to Trade Waste discharge when the wash down tap is activated
Dirty Water collection tank to be sized according to the combined first flush and wash-water volume and the required time interval for disposal of the water content before wishing recommences
Refer below Ground Collection tank sizing drop down tab
Mechanical Oil/Water Separator with hourly treatment rate is selected relative to the disposal and first flush volume
Refer Oil/Water Separator drop down tab for selection of equipment package suited to this specific purpose
These projects require input and design assistance, which isreadily available from our engineering department