Unroofed Washbays in excess of 20 square metres without a roof require a Trade Waste/Stormwater Diversion System.
Typical Rainfall IFD requires site specific calculation
Wash water and Stormwater Flow Rates @ Less than 10.0 L/sec
Product Ref – Option 1
DD600/100/100 – Refer drawing – 600mm Square Class “B” or “D” Grated Cover, Silt retention basket and 100mm Trade Waste and 100mm Stormwater outlets
This option requires a complete wash-down of the paved catchment on completion of the equipment wash, as it does not incorporate an automated first flush diversion
Product Ref – Option 2
Wash water and Stormwater Flow Rates @ Less than 20.0 L/sec
FF600/150/150– Refer drawing – 600mm Square Class “B” or “D” Grated Cover, silt retention basket and 150mm Trade Waste and 150mm Stormwater outlets
This option provides for 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 re-activated
