Guangdong Reinforced Concrete Septic Tanks - Price Per Cubic Meter, Factory Installation, Construction Costs. Pre-cast concrete wastewater treatment units (septic tanks) are a new generation of wastewater treatment units (septic tanks) developed based on cast-in-place reinforced concrete, brick structures, and glass fiber reinforced plastic wastewater treatment units (septic tanks). Constructed with reinforced concrete, factory production ensures a short construction period, low overall cost, land savings, flexible arrangement, high compressive strength, no leakage, and a long service life, making it an upgraded and alternative product to cast-in-place reinforced concrete, brick structures, and glass fiber reinforced plastic. Pre-cast concrete septic tanks are mainly suitable for the purification and treatment of domestic wastewater in various public and residential buildings such as industries, enterprises, hospitals, schools, rural areas, and urban residential areas.