Custom fabricated Vermiculture Treatment Tank. This unit was installed on one on Aucklands outer Islands. This custom built unit needed to be discreet and effective for the peak flow rates of holiday homes. These light weight units can be quickly and easily installed, are low maintenance, eco-friendly, have high UV rating, are fabricated from food grade engineering HMWPE, extrusion welded and tested. Custom builds are our speciality and installation can be arranged.