The Fox Model FF600 First Flush Diversion System

The Fox Model FF600 system is a demand driven diversion unit that provides additional protection for the environment when no washdown is taking place. It is designed for use in areas where there is no guarantee that the wash bay will be left clean at the completion of a wash activity. Pollutants remaining on exposed areas can be dislodged by rain and carried into the stormwater network. The Fox FF600 is designed to cleanse a site by capturing the initial runoff and diverting to suitable treatment, as it is most likely that this initial runoff will carry with it any residual pollutants that have been left on the site.

The unit is fitted in a polyethylene chamber with a 600 square medium duty grate. A polyethylene silt basket is fitted below the grate to capture silts, solids and free floating debris. This is removable for disposal of the captured pollutants. A Fox Model DV150 stormwater diversion valve is installed in the bottom of the chamber. A Galvanised Control Panel is supplied containing all electrical control equipment as well as the Fox Demand Valve. All washpoints must come from beyond this Panel Box. A water supply (min. 100 kPa) and 240 v AC power are required for the control panel which should be installed in a convenient location near the system. Plumbing regulations require that an RPZ unit is fitted prior to the washdown point. Fox can supply an RPZ and strainer on request. A ½” copper drive line and a 32mm electrical conduit are required between the control panel and the FF600 chamber. The ½” copper drive line is the signal line that will activate the diversion of the unit when a demand for wash water is detected.

When a wash operation is taking place the diversion valve will be held in an open position. At the end of the wash activity the valve will close. A ‘delay drop’ function will open the Diversion Valve once more after a 5 minute delay to allow drainage from the area to also be diverted.

At the commencement of rain a float in the chamber will activate at a level just below the stormwater outlet. A signal is sent to the PLC which will cause the diversion valve in the base of the chamber to open, diverting the chamber contents to a treatment tank. This operation will be repeated as necessary until a pre-determined first flush volume has been diverted.

The system must be installed in accordance with the instructions provided by Fox Environmental Systems at the time of delivery. Please refer to our drawing A4-SPEC-1007 for the FF600 specification details and drawing A4-INST-1007 for typical installation requirements.

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The Fox Model DD600S Demand Driven Diversion System

Fox Model DD600S washdown diversion system is a demand driven unit. It is designed for use in a wash area where at the completion of a wash activity the area will be hosed clean of pollutants such as grease & oils. It is important that the area be left clean as there is no protection to the stormwater network during a rain event. The unit is particularly suited to bin wash areas and dedicated carwash facilities in high rise developments. It is not designed for use in areas where silt and solids will be generated such as truck wash, equipment washing, or agricultural applications.

When a wash operation is taking place the diversion valve will be held in an open position allowing all runoff to go to tradewaste. When washdown ceases the valve will close allowing any rain to fill the chamber and leave through the stormwater outlet.

It is most important that the area is left clean as there is no protection for the environment when a wash operation is not taking place. Should the area not be able to be left clean the Fox First Flush System would be recommended (FF600).

The unit is fitted in a polyethylene chamber with a 400 square medium duty grate. A galvanised steel mesh stone basket is fitted below the grate to capture solids and free floating debris. This is removable for disposal of the captured pollutants. A Fox Model DV150 stormwater diversion valve is installed in the bottom of the chamber. A Fox Demand Valve is provided and must be installed prior to the wash point. A ½” copper drive line is installed from the demand valve to the connection point of the chamber by the installing plumber. This is the signal line that will activate the diversion of the unit when a demand for wash water is detected. Plumbing regulations require that an RPZ unit is fitted prior to a hosepoint in the wash area. Fox can supply an RPZ and strainer on request.

In some Shires it is a requirement that washdown cannot take place in open areas during a rain event. The Fox Model DD600S WDSD provides this facility. Local Council Regulations should be confirmed before installation.

The system will be installed by others in accordance with the instructions provided by Fox Environmental Systems at the time of ordering. Please refer to our drawing A4-SPEC-1001 for the DD600S specification details and drawing A4-INST-1001 for typical installation requirements.

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Fox Environmental Systems

Burdens Australia are the proud West Australian distributor of Fox Environmental Systems.

Fox Environmental Systems Pty Ltd is an Australian owned & operated company established in Queensland in 1993, and was formally known as Trade Waste Diversion Systems, which began operations in 1978. The company mission is to provide a range of solutions for prevention of stormwater pollution from large open areas together with the treatment and recycling of waste water using Fox’s Australian manufactured products and other cutting edge technologies.