Test conducted by Southern Hydro Ltd for Integral Environmental Energies - 1997 Data for entries greater than 8.5 I/s derived by means of extrapolation.

Tests conducted by Snowy Mountains Engeering Corp for Integral Environmental Energies - 1997. Up to three data points for the curves for 60 to 90 metre heads derived by extrapolation. Refer to specifications overleaf for details.