into the hopper 20 it is anticipated the haulers such as a ready mix truck would be emptied and washed into the hopper 20 where the material can be separated and reclaimed the material is placed into the hopper 20 with the auger 30 rotating the material such as concrete tends to separate into concrete solids 16 which settle to the bottom of the hopper 30 and the excess water tends to float the lighter and smaller cement particles to the surface of the water 18 the solids 16 are agitated by the auger 30 and pulled upwardly along the angled sides 24 and above the surface of the water as the solids 16 pass the wash water nozzle 36 they are washed removing more of the residual washable components the residue is carried by the wash water down the auger housing and back into the hopper 20 the solids 16 continue upwardly along the auger housing 32 being carried by the auger 30 as the solids 16 are carried upwardly by the auger 30 residual water drains down the auger housing 32 and back into the hopper 20 the solids 16 continue upwardly along the auger housing 32 to the screen 38 where the sand 18 passed through the screen.