Abstract: A foldable water tank includes a foldable receptacle having a bottom wall and vertical sidewalls; and a folding frame to support the sidewalls in an upright position. The frame has first, second, third and fourth upper rails joined end-to-end. The frame has a folded position wherein the upper rails are adjacent to each other. First hinges disposed at end portions of said upper rails pivotably connect the upper rails. The second and fourth rails each includes first and second sections having adjacent end portions. Second hinges connect the adjacent end portions to allow the second and fourth rails to fold inwardly to be disposed between the first and third rails in the folded position. The second hinges each includes a shield to cover the adjacent end portions thereby to protect a user's hand from being pinched by the adjacent end portions during unfolding or folding of the frame.

Abstract: A portable water tank comprises a foldable receptacle having a bottom wall and vertical sidewalls; a frame to support the sidewalls in an upright position, the frame including upper and lower rails, and vertical posts joining the upper rail to the lower rail. The receptacle includes a drain sleeve disposed near the bottom wall and extends between corresponding portions of the upper and lower rails, and between a pair of the posts. The sleeve overlies the corresponding portion of the lower rail. Reinforcement members are attached to the corresponding portions of the lower rail and the pair of posts. A valve is operably attached to the pair of posts and the corresponding portion of the lower rail. The valve is operably associated with the drain sleeve and has an open position to allow water within the receptacle to flow through the drain sleeve, and a closed position to keep water from flowing through the drain sleeve.

Abstract: A foldable water tank comprises a foldable receptacle having a bottom wall and vertical sidewalls, the sidewalls being inclined inwardly; and a plurality of support structures connected to the sidewalls to support the sidewalls in the inclined position.