I have a very small Dyson which is easy to move around - it is half the size of a normal upright. My Bissell steamer came with a number of brushes, including a grouting brush. Perhaps you could work as a team by having someone else wield the brush on the grout whilst you hold the detatchable water steamer. The steamer requires that someone hold onto the switch on the handle to operate. It stops when the switch is released.