A composition for cleaning hard surfaces which is self-adhering to a wet or dry hard surface through a plurality of flows of water thereover. The composition is a gel having a viscosity of about 600,000 cP to about 1,500,000 cP and is capable of being manually applied, i.e., in absence of an applicating dispenser, to a hard surface. The gel composition with high viscosity provides for continuous cleaning until depletion, or may be used for one-time cleaning at any time between application of the composition to a hard surface and depletion of the gel composition.