Abstract: A floating cover system for a container with an open top includes a plurality of floating cover sections with cover connector devices spaced along a periphery of each at a connector spacing. A ballast tube has tube connector devices spaced along the exterior thereof at the same connector spacing. The ballast tube is open at each end and longer ballast tubes also define access holes along a length thereof. Water enters an interior of the ballast tube through the open ends thereof and the access holes, if any. When all the cover sections are installed in the container, the open top of the container is substantially covered by cover sections joined together at seams where adjacent cover connector devices are connected together, and the tube connectors are connected to the cover connectors along a ballast seam such that the ballast tube is located under the ballast seam.

Abstract: A fabric tube with two passages comprises a fabric tube sheet. A first fabric weld strip with right and left flanges extending laterally from a bottom edge of a weld fin is welded to a first surface extending the length of the fabric tube sheet at a distance D1 from the first edge thereof A second fabric weld strip is welded to an opposite second surface and extends the length of the fabric tube sheet between the first fabric weld strip and the second edge of the fabric tube sheet at a distance D2 from the second edge of the fabric tube sheet. The first edge of the fabric tube sheet is welded to the weld fin of the second fabric weld strip and the second edge of the fabric tube sheet is welded to the weld fin of the first fabric weld strip to form two passages.

Abstract: A portable containment system has a flexible liner sheet and a plurality of leg assemblies attached to the edge portions of the liner sheet. Each leg assembly consists of two legs connected by a fabric hinge and movable from a collapsed transport position to an upright operating position where the legs slope upward toward each other to form a triangle. The edge portions of the liner sheet are attached to the top of the triangle. The bottom ends of the leg assemblies are connected to a flexible leg sheet such that the leg assemblies are evenly spaced. Moving all the leg assemblies to the operating position supports the edge portions of the liner sheet in a raised position sloping upward from the surface at an angle less than about 75 degrees, such that a containment area is formed inside the sloping edge portions of the liner sheet.

Abstract: A fabric tube with two passages comprises a fabric tube sheet. A first fabric weld strip with right and left flanges extending laterally from a bottom edge of a weld fin is welded to a first surface extending the length of the fabric tube sheet at a distance D1 from the first edge thereof A second fabric weld strip is welded to an opposite second surface and extends the length of the fabric tube sheet between the first fabric weld strip and the second edge of the fabric tube sheet at a distance D2 from the second edge of the fabric tube sheet. The first edge of the fabric tube sheet is welded to the weld fin of the second fabric weld strip and the second edge of the fabric tube sheet is welded to the weld fin of the first fabric weld strip to form two passages.