Surface finishing equipment company offers surfex grout pumps. These grout pumps consist of positive displacement type of powerful pumps of suitable capacity. Actually these pumps are coupled with geared motor [diesel engine in case of diesel engine version]. The inlet of the pumps is connected. Through hose pipe, to the outlet of twin grout mix preparation tanks. At the outlet of the pipe a bypass arrangement is provided for regulating pressure and volume of grout mix. The grouting hose pipe of required size is connected through quick action coupling at the outlet of the pumps. The other end of grout hose is coupled with grouting nozzle. A pressure gauge is provided at the outlet of the grout pump in order to measure the grouting pressure. The selection of the grout pumps is based on maximum grouting pressure required and the maximum grout mix output desired.