This study discusses the phenomena around a water-drained column froth and gives some insight on the mechanisms involved in solids transfer. Theoretical study of the stability of the bubble-particle system has shown that detachment may occur at the interface because of the kinetic energy released by deceleration and impact upon arrival at the interface. Significant destabilizing conditions are caused by bubble oscillation in the higher froth layers since the kinetic energy acquired momentarily by a Particle attached on an oscillating bubble is comparable to the required detachment work. A qualitative model of a water washed column froth is discussed, based on the above analysis and the up-to-date knowledge on froths. Entrainment is successfully eliminated at the cost of recovery.