The ChemGrout CG-680 colloidal pump provide continuous mixing and pumping of cement slurries, fly ash, bentonite and lime flour. The CG-680 colloidal grout pump feature a 17 cubic foot high shear colloidal mixer and a 17 cubic foot agitated storage tank, equipped with a high speed centrifugal diffuser-type pump that disperses the cementitious material down to its finest particle size to achieve complete particle wetness. The CG-680 colloidal grout pump gives a maximum output of 45 gpm at 261 psi.