Abstract: A sanitary device for receiving natural excretory wastes from dogs or similar animals, and automatically disposing of such wastes, includes a rolling carpet on which the animal can deposit the waste matter, a platform surrounding an upper part of the carpet, and a column rising from the platform and containing the drive mechanism for rotating the carpet after the animal has deposited the waste matter, a water trough for receiving water, and a flush mechanism for supplying the water to wash the waste matter from the carpet and also to rinse the sides of the column. The column is formed of upper and lower parts, with the upper part being a cornice for the lower part. A sluicing channel at the juncture of the upper and lower parts rinses down the vertical surfaces of the lower column part, and a channel in the platform at the foot of the column channels the rinse, plus any entrained urine, towards an evacuation orifice.