Abstract: An improved dishwasher is provided, which is particularly intended for domestic low-pressure water supplies. The dishwasher has a container with a floor and an open top which is closable by a lid. A water inlet extends into and a water outlet drains water from the container. A rotatable spray unit is supported rotatably in the container, and has a tubular T-shaped spray member. The T-shaped member includes a substantially vertical tubular stem, and a first tubular arm and a second tubular arm, both of which are substantially horizontal and are joined at the top to the vertical stem and have their ends closed off. A fluid guide joins the water inlet to the vertical stem for supplying water into the vertical stem and the horizontal arms. A number of spaced holes are provided in the vertical stem and in the first and second arms for providing jets of water for rotating the tubular spray unit and for washing and rinsing articles placed inside the container.