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HumeGard® GPT


The HumeGard® GPT is a high-performing, University-designed and proven, treatment device capturing gross pollutants and coarse sediment from urban stormwater, even during bypass flows.

Gross pollutant traps such as HumeGard® GPT are the first, integral, part of the WSUD treatment train as they capture the visible litter and coarse sediment (≥ 150 micron).

  • 100% gross pollutant capture prior to bypass
  • 85% gross pollutant capture annualised
  • Large pollutant storage volume
  • Accommodates change of direction & tidal/tailwater conditions
  • Free oil (spill) capture
  • Retains pollutants even during bypass flows
  • Low Head loss factor (k = 0.2)
  • Accommodates change of direction & tidal/tailwater conditions
  • 85% sediment capture >150 microns