Tank liner

A liquid-tight liner for installation into a tank shell of elongate shape having opposed end walls and opposed side walls, the liner being fabricated from flexible sheet material impervious to passage of water or other liquid, the liner having an upstanding peripheral wall, a base sealed to the peripheral wall, and a series of spaced baffles extending between opposed sides of the peripheral wall lying adjacent the sides of the shell when the liner is installed in the tank shell, the sheet material forming the baffles being connected to the inside face of the peripheral wall by welding or gluing, and the baffles being of such a length that when the liner is installed in the tank shell and subject to the hydrostatic pressure of water or other liquid stored within the tank, the baffles will maintain the opposed sides of the liner in relation to adjacent sides of the tank shell whereby the side walls of the tank shell will not be subject to substantial, if any, water or other liquid pressure tending to distort the side walls.

A liquid-tight liner for installation into a tank shell of elongate shape having opposed end walls and opposed side walls, the liner being fabricated from flexible sheet material impervious to passage of water or other liquid, the liner providing a series of interconnected tubular cells and is such that when installed within the tank and filled with water or other liquid the side walls of the tank shell will not be subject to substantial, if any, water or other liquid pressure tending to distort the side walls.

A liquid-tight liner for installation into a tank shell of elongate shape having opposed end walls and opposed side walls, the liner being fabricated from flexible sheet material impervious to passage of water or other liquid and the liner having a structure such that when the liner is installed within the tank shell and filled with liquid the side walls of the tank shell will not be subject to substantial, if any, water or other liquid pressure tending to distort the side walls.

A tank for water or another liquid that comprises a tank shell and a liner according to any one of the preceding claims installed in the tank shell, wherein the tank shell is an elongated shape with straight side walls and narrower end walls, wherein the liner has an upstanding wall which conforms approximately to the wall of the shell and a base sealed to the all of the liner, and wherein opposite end wall sections of the wall of the liner are braced against the end walls of the shell and are thereby supported by the shell and whereby side wall sections of the wall of the liner can carry hydrostatic pressure loading of water or other liquid in the liner around the periphery of the cells without subjecting the side walls of the shell to substantial, if any, loading tending to cause the side walls to distort.