The GS1000 Grout Machine... good for nearly every occasion! Self-contained power unit; no other power source required. Utilizes a piston-type grout pump and Honda engine. Manual-start, 5.5 hp gasoline engine provides approximately 3.0 to 3.5 hours of operation from each 0.95 gallon tank of fuel. Nearly six gallons of hydraulic fluid in the reservoir allows continuous operation without the need for an external oil cooler. Toggle switches control positioning of solenoid valves in a valve block and allow grout pump cycling in both a manual and automatic mode. The hydraulically-driven piston pump is capable of providing operating pressures up to 1000 psi. Pump displacement is 13 cubic inches and flow rates of 0.9 to 2.3 gpm are possible. 9.5 gallon grout hopper. Grout machine weighs only 225 pounds (102 kg).