Gully pot systems have to fulfill two functions which are the efficient discharge of surface water and the removal of pollutants. Since the removal efficiency is limited by the hydraulic loading, these are contrary tasks. In order to produce a more efficient design for a qully pot, about two hundred gully pots in different catchment areas have been examined and the pollutant removal analysed. A simulation model is calibrated using these data and the model used to predict the pollutant removal and the frequency of gully pot cleansing for different kinds of gully pots. © 1990.
