In conjunction with P&M Pumps, which markets the Rotamix System incorporating the Vaughan chopper pump, System Mix is an established supplier of digester mixing systems to  waste water companies.  At Southern Water over 90% of total digester volume (82007m³) is mixed using the Rotamix System.

 “It is crucial to the AD process that suitable pre-conditioning of solids is carried-out prior to digestion and our system has been proven to be one of the most effective in achieving this. The Vaughan pump prevents re-accumulation of fibrous and fatty material in the digester and this means that material continues to pass through the nozzles,” says Andy Parr, director of System Mix. “This in turn ensures that digestate is adequately conditioned and actually benefits all post-digestion equipment.”