A containment structure for a septic pit for manure, the septic having a side wall extending upwardly from a bottom wall, the containment structure including a base designed to sit on the side wall of the septic pit, a frame extending over the septic pit, an upper connecting device hanging from a flexible cable interconnecting the upper connecting device and the frame, a plurality of lower attachment members and a plurality of straps extending between the upper connecting device and the lower attachment members with a cover being supported by the straps.
