Bathroom Furniture and Sanitary Ware Design Washbasin Self-Cleaning by SEREL Ceramic Factory Primary goal of Serel Poseidon Rectangular Washbasin is to provide maximum hygiene. Washbasin that will inspire new movement with its Self-Cleaning function of reservoir prioritizes hygiene and functionality. Areas on the left and right sections enable use of shelving unit for the user. After being used, the washbasin cleans itself which reduces the need of using cleansers and contributes in protection of usable water sources.