Demand Driven Wash Down
Demand driven wash down systems
Demand driven wash down systems are used in conjunction with vehicle and machinery wash bays. They are used to divert wash down water runoff for treatment while detecting rain activity and transporting uncontaminated water directly to the stormwater network. They are ideal for wash down areas where the wash down area is small enough to allow for the hosing off of any contaminants left lying on the ground after wash down activity.
If your wash bay area is larger and comes into contact with a high number of pollutants you are advised to consider a First Flush System.
DD600S
| Material | 6mm DPE |
| Diversion valve flow rate | 1200L/min @.5 head |
| Grate | Medium duty galvanised |
DD600
| Chamber capacity | 130 Litres |
| Material | 6mm DPE |
| Silt basket capacity | 50 Litres – 9mm holes |
| Diversion valve flow rate | 1200L/min @.5 head |
| Grate | Class B galvanised |
DD600BRT
| Chamber capacity | 130 Litres |
| Material | 6mm DPE |
| Silt basket capacity | 50 Litres – 9mm holes |
| Diversion valve flow rate | 1200L/min @.5 head |
| Grate | Class B galvanised |
| Stormwater quality improvement device material | 12mm MDPE |
| Stormwater quality improvement device material | 6mm Tread plate |
DD600
The DD600 is our standard Demand Driven Washdown system and is suitable for standard washdown activity where the area is sufficiently small enough that all contaminants are ‘hosed’ off the surface at the completion of the washdown activity.
DD600S
The DD600S operates in exactly the same manner as the DD600, however, it is not well suited to areas where there is a high generation of silt and solids e.g. truck washing bays and agricultural equipment wash down.
DD600BRT
The DD600BRT Diversion System includes a secondary chamber (Stormwater quality improvement device) that features a baffled design. Potential floating debris such as Hydrocarbons (being of lower density than water) are trapped in the secondary chamber as they enter the stormwater outlet due to the baffle design of the stormwater quality improvement device.
About demand driven diversion systems
Standard usage – small wash bays
Demand-driven washdown diversion systems are designed for unroofed areas where washdown activity occurs. The system features a dedicated line for washdown, which when activated diverts all water runoff to the trade waste outlet where it is then transported for treatment or a holding tank.
When washdown is complete, the diversion valve is closed resulting in any additional water that may find itself entering the system e.g. due to rain activity being transported to the stormwater network.
Demand-driven diversions systems protect the environment by reducing the number of pollutants able to enter the stormwater network.
It is essential that the wash down area is hosed clean at the end of any wash down activity as demand-driven systems with the exception of the hydrocarbon capturing capabilities of the DD600BRT do not offer protection from contaminants entering the stormwater network. If you can’t guarantee that your wash down area can be free from contaminants a first flush system is recommended.
If you have an enquiry regarding any of our Demand Driven Wash Down Systems, you can contact us by using the form below.