Abstract: A modular dike or barrier system includes interconnectable side and corner members having front and rear walls with integrally formed support ribs. Upper, base and side end walls connect and are integral with the front and rear walls. Each of the front and rear walls extends at an acute angle relative to the base wall that is configured to rest against a substratum. The inward acute angle allows for containing and redirecting a surge flow inwardly within an area contained by the barrier system in a direction away from the members. The members are generally plate-like and are configured to allow for horizontal stacking on the substratum. Members can include a selectively collapsible support assembly configured to be retained at central bodies of the respective members and to limit interference during stacking and transport of the members.

Abstract: A float tube has a pair of separate side-by-side pontoons, each comprising a pontoon cover and an inflatable bladder. A generally U-shaped support, having a separate cover and bladder, is mounted on top of the pontoons. The support has a pair of arms which overlay portions of the pontoons and the cover of each arm is attached to one of the pontoon covers. The support also has a back support member which spans between the two arms. The back support member serves to interconnect the two pontoons and maintain the proper spacing between them, and be a back support for someone sitting in the float tube. A flexible seat extends between the two pontoons in front of the back support and a rigid separation element extends between the two pontoons in front of the seat to keep the pontoons parallel. A headrest, having a separate cover and bladder, is located above the back support member.