Egg-shaped digesters are the latest trend in wastewater treatment. The oblong shape of the egg digester reduces overall surface area and eliminates dead spots, preventing settling and stratification. To match this excellence in sludge handling, the egg digester design has always specified Red Valve Pinch Valves. In the application shown, a Red Valve Series 75 Manual Pinch Valve is used to isolate this egg digester in Gwinnett County, USA.