Endoscope connection portions 24a to 24h, a fluid feeding duct 22, a liquid supply duct 12, a first atmospheric exposure duct 40 including one end connected to the fluid feeding duct 22 and the other end exposed to atmosphere, a relief valve 41 disposed at an intermediate position of the first atmospheric exposure duct, a first stop section 42 disposed at an intermediate position of the first atmospheric exposure duct 40, and a control section 70 that performs control to supply a liquid to ducts of endoscopes 51 and 52 and controls at least opening/closing operation of the first stop section 42 are included.
