The zone (1) has an animal discharge-pipe (3) leading into a human discharge-pipe (4) that is placed between an area for accommodating humans. The animal discharge-pipe is arranged with a sewage-discharge pipeline (5) to receive excretions of the animals. A rotatable sealing device comprises a first position for enabling the animal excretions to be received, and a second position for enabling the animal excretions to be discharged. The rotatable sealing device is a rotary slide valve provided with a vertical central axis. An independent claim is also included for a method for operating a sanitary appliance for a domestic animal.
