Abstract: Apparatus is provided for allowing the draining of a liquid containing an entrained gas from a discharge tube, the separation of the gas from the liquid and the directing of the liquid to a drain pipe. The apparatus includes a vertical elongated conduit member having venting apertures formed therein and first and second vertically inclined arms extending therefrom. An elongated directing conduit is coaxially supported within the elongated conduit at a distance beneath the discharge tube to form an air gap therebetween. In operation, a source of suction is connected to the first arm and draws atmospheric air into the system through the venting apertures and through the second arm. The discharge tube is then opened allowing the liquid/gas mixture to enter the drain apparatus in which the gaseous constituent is drawn from the liquid via the air gap and the liquid constituent is conducted past the venting apertures by the directing conduit thereby avoiding any splashing and escape of the liquid.