Triton TR8 Turbidity Analyzers from Electro-Chemical Devices can be used to monitor turbidity in filter backwash systems to optimize plant efficiency. Turbidity is used to monitor the progress of the cleaning, and when the turbidity returns to a value near the turbidity of the clear well water the backwash cycle is stopped. The analyzer operates over a wide measurement range with output available in multiple units: 0.000 to 9999 FNU, or 0.00 to 3000 ppm, or 0.0 to 3.0 g/l, or 0 to 20 percent. The sensor features an error rate of less than 5 percent of reading with repeatability greater than 1% percent of reading. Electro-Chemical Deviceswww.ecdi.com