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

DD600S Demand Driven Wash Down Systems

Material

6mm DPE

Diversion Valve Flow Rate

1200L/min @.5 head

Grate

Medium Duty Galvanised

DD600

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

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.

Upon the next wash down activity, the trapped floating debris is gravity fed back to the main chamber where they are transported via the trade waste outlet for treatment along with the additional wash down water runoff.


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 ensure 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.