Abstract: A convalescent recovery stall for large animals comprises a rectangular frame of length and width greater than the corresponding dimensions of the animal, with means for inserting wall sections into said frame, so as to provide a rectangular box surrounding said animal, to a selected height. There is at least one rectangular, closed, flexible-walled water tank which will fit snuggly within the walls of the box. There is at least one reentrant tube of flexible material sealed into the top surface of the tank. Altogether there will be four such tubes one for each of the four legs. The contour of the tube is such as to fit a leg of the animal. The vertical height of the tank is greater than the length of the legs of the animal so that when the tank is filled with water under pressure, the water pressing on the surfaces of the legs, chest and abdomen of the animal, will support its weight.