Ri-Industries manufactures and supplies pre-cast concrete products in Adelaide, South Australia. Since commencing operations in 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 recommend us to others. Our residential Ri-Treat waste water treatment system is considered to be the finest in Australia. The same can be said for our concrete septic tank and concrete rainwater tank products.