Att 4 - SWMP · MCU21/0117

                                              Figure 4.4 – Typical Tank node configuration

            Each tank is to be fitted with a first flush diverter to remove the typically sediment laden
            initial volume from the tanks. This is modelled by assuming a 25L flush for run-off draining
            to each tank distributed over the roof area equating to a 0.12mm increase to the rainfall
            threshold on the upstream roof source node.

            The tanks will be plumbed for internal and external reuse which has been modelled in
            accordance with the MUSIC guidelines. The reuse demands have been determined as
            follows.

                    -   Internal Reuse

                           o     All homes are assumed to be fitted with full water saving devices,

                                      ▪     26L/Person/day for laundry

                                      ▪     21L/Person/day for toilets

                           o     ½ Pod C roof run-off

                                      ▪     2x2 bed = 3.2 persons

                                      ▪     3.2 * 47L = 150.4L/day

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