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, First Flush 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 activated
FF600/150/150/GTI– Refer drawing – 600mm Square Class “B” or “D” Grated Cover, 250mm Riser, silt retention basket and 150mm Trade Waste and 150mm Stormwater outlets
This option provides for collection from a Grated Trench in the wash pad with wash water to be directed to Trade Waste, programmable volume of First Flush of rainwater 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
Optional Extraproviding additional level of protection to the stormwater drain
Refer Drawing FF 600/150/150-BRT 600/150/D – Available with 250mm Riser for Option 2
The BRT 600 trapping any minor hydrocarbon residuals and suspended solids as detailed on the equipment drawing and functional specification