While excavating it is necessary to keep the walls straight and clean so that recovered materials from a specific area are kept together. A trowel or skim shovel can be used to trim back or clean the walls of the excavation.
While excavating it is necessary to keep the walls straight and clean so that recovered materials from a specific area are kept together. A trowel or skim shovel can be used to trim back or clean the walls of the excavation.