EngSWMP

         All connections and joints should be checked and broken rivets replaced (See
          Plate 29);
         The plastic pit seals should be inspected for unit movement or damage (See Plate
          30); and
         The cage should be inspected for damage or movement (See Plate 31).

The overflow diversion channels, and the area between the Enviropod cage and pit wall
should also be inspected for the accumulation of debris. Any observed debris should be
removed and disposed of off-site. Accumulated material within the outlet pipe may need to
be flushed.

Note: If the units are not cleaned regularly the mobilisation of material collected in the
Enviropod unit may occur, as such cleaning of the units in accordance with this
management plan is required. As this plan is based on observations and data collected
during the monitoring period, ongoing adjustment of the cleaning frequency is generally
required to improve the overall efficiency in the removal of collected material and prevent
material overflow.




Plate 29 Check seals are pushed Plate 30 Check joining rivets (two
against the pit walls           piece unit shown above)




3.5   Filter Bag Inspection and Rejuvenation
Following the emptying and cleaning of the filter bags, the filter bag should be inspected to
evaluate the bag condition. Given the nature of stormwater the filter bag from some
Enviropod units can become considerably clogged with fine sediment. Filters can also be
damaged by various objects in stormwater as well as fauna. Sharp objects such as sticks
combined with high velocity water and a large mass in the filter bag can cause small tears
in the filter material. Animals such as rats have also been known to chew through fine
mesh filter bags located in gully pits near takeaway food outlets.


3.5.1 Clogged Filters
Clogged filter bags can be clean using several different methods. If the bag cleaning
techniques described in the general maintenance sections above are not able to clean the
filter bags the following options should be considered:
      Using a stiff brush and a bucket of soapy water scrub the filter bag surface.