Swmp

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        Graf Underground Systems

        As the urban environment continues to
        grow, the need for effective storm water
        management is becoming more and
        more important.
        Many councils and local authorities now require a detention
        tank to capture and hold rainwater on the property and slowly
        release it back into the storm water network to ensure flash
        flooding of storm water drains does not occur. The council or
        local authority will usually nominate the amount of water to be
        detained and the flow rate back into the storm water system.
        With a national focus on water savings by collecting rainwater
        the installation of a retention system allows for both the
        detention of water to meet local requirements plus the benefit       property owner. Thus replacing the need to buy an additional
        of rain water harvesting – a quality filtration system enables       rainwater tank. The property owner can use this retained
        clean quality rainwater to be collected in the Graf Platin Tank.     water for flushing toilets, filling washing machines and
                                                                             watering gardens.
        Sized and set up correctly the tank will detain the specific
        amount of water required by the council before letting it drain      Due to its shallow excavation and strong construction,
        slowly back into the storm water network. It will also provide       the Graf Platin underground tank it is ideally suited as
        the retention of a suitable amount of rainwater for use by the       either a detention tank or a retention tank system.




        Graf Storm Water Management
        • Unlimited capacity
        • Suitable for detention and retention
        • Variable flow control
        • Reduce risk of flooding on public storm water drains
        • Easily set up to meet the specifications of the site requirement




                                                                                                     GRAF UNDERGROUND STORMWATER TANKS 3