Until the ramparts raising a Lower Town gate with Psie Ramparts defended departure city to the east. Name of the shaft came from an extremely dangerous dogs from the municipal kennel that night were supposed to guard the Granary Island. Built in the fifteenth century, the name of the taller tower is connected with the similarity to a large water jars for milk. In the nineteenth century it was intended to dismantle the gate and run that way street, but after violent protests by public road passes landmark arch.On the wall we can see the gates of the Triad coats of arms: Arms of the Republic, coat of Gdansk, coat of Royal Prussia. On the wall of the waterfront can be seen badly damaged one of the flood marker.