Abstract: A mixing system and a method of mixing a relatively low specific gravity substance and a relatively high specific gravity substance are provided. The system includes a tank for containing a mixture, and an adjustable tube having an intake, wherein the adjustable tube is located within the tank and is adjustable for positioning the intake proximate an upper surface of the mixture for drawing in matter having a tendency to float on the surface of the mixture. The system also includes a circulating means for drawing matter out through the adjustable tube and back into the tank via a dispersion tube. The dispersion tube is constructed to allow the mixture to be recirculated throughout the tank or directed to a selected lower portion of the tank.