Situated in the south of Sydney, the Macarthur Resource Recovery Park is the city's largest alternative waste technology processing plant. At the heart of plant lies the Ecolibrium Mixed Waste Facility, which involves biological digestion with outputs of fertiliser, water and biogas containing up to 75% methane. Due to the difficult nature of the waste being processed, the plant utilises up to sixteen Vaughan E-Series horizontal end suction chopper pumps throughout various areas of the plant where solids in suspension can cause clogging problems in pipe work and associated equipment.