Ri-Industries manufactures and supplies pre-cast concrete products. Since 1947, we have established a strong reputation for the quality of our products, service, and our knowledge, in particular, of septic tanks (including septic tank design), waste water treatment and rainwater tanks. We are totally committed to achieving excellence in all that we do, which is why South Australian residents and businesses repeatedly buy our products and regularly recommend us. For homeowners our Ri-Treat waste water treatment system is considered to be the finest in Australia. The same goes for our concrete septic tank and concrete rainwater tank products.