Suitable for treating very high flows in pipelines, large tanks, or treatment ponds, Model 5000B features external manifolds with Dif-Jet™ gas injectors that inject CO2 directly into circulating wastewater to lower pH. Non-fouling gas injectors do not produce back pressure over time and will last indefinitely. Powered by submersible pump, Model 5000B is controlled by PLC that is programmed to feed CO2 at certain trip point and automatically cut off CO2 feed once target pH is achieved.