Ri-Industries is a South Australian-owned manufacturer of high-quality precast concrete products, serving residential, commercial, civil, and construction projects since 1947. The company specialises in concrete septic tanks, wastewater treatment systems, underground rainwater tanks, and related water management solutions. Ri-Industries also supplies commercial precast products including trade waste arrestors, stormwater sumps, drain grates, covers, inspection openings, and custom concrete solutions for civil engineering and construction projects. With nearly 80 years of manufacturing and engineering experience, the company serves metropolitan Adelaide, regional South Australia, and the Northern Territory, providing durable products backed by knowledgeable service, reliable delivery, and strong quality standards.