wall 18 forms a completely rigid support structure for toilet bowl 16 and tank 14 pump 40 is positioned along the interior lower floor of tank and enclosure 10 and has a pump intake 41 positioned near the bottom of the tank in operation tank and enclosure 10 may be installed by merely resting it on a floor surface or it may be recessed into a floor so that the top surface of the lower tank portion is flush with the floor level in either event the exterior surface of tank 10 may be covered with carpeting or other floor covering materials or may be covered with ceramic tile alternatively portions of tank and enclosure 10 may be tiled and other portions may be covered with other floor covering materials if tank and enclosure 10 is recessed into a floor plate 22 may be attached against rear surface 26 by bolts placed at locations 27 and 29 alternatively if tank and enclosure 10 is merely set atop a floor surface plate 22 may be attached at locations 27 and 28 in either event the height of basin 20 may be selected so as to maintain it at a nominal 29 30 inches above floor level it should be noted that bolts and bolt holes may be provided along either edge of plate 22 so as to permit the attachment of plate 22 on either side of tank and enclosure 10 after tank and enclosure 10 has been located in a preferred location in a room the water and sewage connections are made to the appropriate tank connecting points a.