Callaghan and Toth IWMP Report revised

MAINTENANCE & INSPECTION




To minimise OH&S risks the inspection procedure is              A maintenance schedule needs to be established
carried out from the surface via the access structure           for each individual location based upon site specific
connected to the 'Catch-All-Row' or from the vertical           variables such as:
inspection pipe. The inspections are visual and will verify
                                                                •   Type of land – industrial, commercial, residential
the depth of pollutant built up within the row.
                                                                •   Anticipated pollutant load
The maintenance procedure is carried out with the Jet-          •   Percent imperviousness
Vac process which utilises a high pressure water hose.
                                                                •   Climate
The pressure of the nozzle propels the hose to the end
of the C-A-R while jetting and suspending sediments.            An accurate maintenance interval can be determined by
As the nozzle is retrieved, the captured pollutants are         regular, logged inspections, recommended at no more
flushed back into the manhole sump and vacuumed.                than 6 monthly intervals initially.



Reducing maintenance costs

The environmental benefits of solids removal are well documented, however the more effective a system is at removing
contaminants and solids the more often it will need to be cleaned – yes? Well, not necessarily. It also depends on the
volume available for sedimentation and solids deposition. ecoAID® enables the designer to maximise this volume and
extend the maintenance return interval, so you spend less time and money cleaning out.