All concrete products are manufactured at the company’s own purpose-built precast concrete factory in Narellan under a strict controlled production system. Although concrete stormwater pits have no applicable Australian Standard, the company holds product certification to both ‘AS/NZS 1546.1 Small septic tank’ and ‘AS/NZS 1546.3 Aerated Wastewater Treatment Systems’ Standards. The concrete pits are manufactured under the same Quality Assurance procedures as the certified products. The company is committed to providing the highest level of quality across all of it’s production processes.