Abstract: A method for securing a piece of equipment to a mobile system including a side rail and a body disposed over the side rail, the method including disposing a pair of rails underneath and supported by the body atop the pair of rails and securing the equipment to the pair of rails with a securing mechanism.

Abstract: A low profile holding tank-evacuable to a pressure differential of at least about 10? of mercury that includes a plurality of support structures, a peripheral wall, an upper outer layer of mild steel and a lower outer layer of mild steel, each of the upper outer layer and the lower outer layer is configured to be up to about ¼ inches thick. At least some of the plurality of support structures are required to be fixedly connected to upper and lower outer layers to prevent damages incurred on the low profile holding tank by repeated applications of the pressure differential of at least about 10? of mercury. At least some of the connections are required to be made from the outside of the tank via a welding, e.g., plug welding, technique.

Abstract: A low profile holding tank capable of being evacuated to a pressure differential of at least about 10? of mercury, the low profile holding tank including at least one support structure, an upper outer layer and a lower outer layer each constructed from mild steel that is no thicker than about ¼ inches and a peripheral wall, the upper outer layer, the lower outer layer and the peripheral wall cooperate to define a space, the at least one support structure is connected to the upper outer layer at an upper connection point and the at least one support structure is connected to the lower outer layer at a lower connection point, wherein at least one of the upper connection point and the lower connection point is made from outside of the space.

Abstract: A holding tank system for holding a waste, the holding tank system including: a holding tank including a floor disposed in a first plane, the holding tank configured to be supported on at least one joist disposed in a second plane, wherein the second plane is disposed at an incline with respect to the first plane.

Abstract: A holding tank system for holding a waste, the holding tank system including: a holding tank including a floor disposed in a first plane, the holding tank configured to be supported on at least one joist disposed in a second plane, wherein the second plane is disposed at an incline with respect to the first plane.

Abstract: A low profile transportable holding tank for accepting waste from portable toilets. The holding tank is carried on a flatbed vehicle and has a flat deck for cargo, thus effectively increasing the cargo-carrying capacity of the vehicle compared with that available if the vehicle were carrying a conventional holding tank. Internal reinforcement enables the holding tank to withstand a partial vacuum imposed for pumping waste into the tank.