A vertical cylindrical continuous flow decanter will be designed to separate the mixture containing a light petroleum liquid $(p=875k\frac{g}{m^3})$ at a flow rate of $2000k\frac{g}{h}$ and a dilute wash water solution $)=(1050\frac{kg}{m^3}$ at a flow rate of $3500k\frac{g}{h}.$ The viscosity of the continuous phase is $0\mathrm{.}73cP.$ Assuming that the diameter of the decanter is equal to three times the height and the void volume is $10\%$ of the total volume, calculate the outlet height of the heavy liquid, the diameter and height of the container.