An underground storage tank maintenance system includes a system of monitors to determine pressure and humidity in the system. Inert gas may be supplied into the ullage of the tank. The inert gas may first pass through an interstitial space as between the primary storage and secondary containment, and then passed into ullage to capture contaminants on the way out of the vent to atmosphere. The system and method prevent hydrocarbons exiting to atmosphere. Humidity sensors may be set along vent to determine water contamination and trigger drying cycles. Pressure readings help identify system leaks.

An underground storage tank maintenance system includes a system of monitors to determine pressure and humidity in the system. Inert gas may be supplied into the ullage of the tank. The inert gas may first pass through an interstitial space as between the primary storage and secondary containment, and then passed into ullage to capture contaminants on the way out of the vent to atmosphere. The system and method prevent hydrocarbons exiting to atmosphere. Humidity sensors may be set along vent to determine water contamination and trigger drying cycles. Pressure readings help identify system leaks.

A container for storing liquids includes an inner layer including a storage space for storing liquids; an outer layer; and multiple spacers fastened between the inner layer and the outer layer to form multiple compartments. The spacer includes a first surface and a second surface. The first surface is secured to an adhesive layer of the inner layer. The first surface has many cavities. The second surface is secured to the outer layer and having projections complimentarily secured to the cavities. A manufacturing method of the container is also provided. Therefore, it can solve the problem permeation and adhesive failure caused by leaking. It can generate an early alarm by detecting any leaking or permeation of the container.

A container for storing liquids includes an inner layer including a storage space for storing liquids; an outer layer; and multiple spacers fastened between the inner layer and the outer layer to form multiple compartments. The spacer includes a first surface and a second surface. The first surface is secured to an adhesive layer of the inner layer. The first surface has many cavities. The second surface is secured to the outer layer and having projections complimentarily secured to the cavities. A manufacturing method of the container is also provided. Therefore, it can solve the problem permeation and adhesive failure caused by leaking. It can generate an early alarm by detecting any leaking or permeation of the container.

An apparatus for providing an interstitial space to the surface of wall, the apparatus comprises: an adhesive layer; a layer of fluid impervious and weather proof material in form of a tape, the tape partially overlapping itself; a layer of spacer material situated between the surface of the tape facing the wall and the surface of the adhesive layer distal from the wall. The spacer material has ends which are encapsulated, the apparatus providing a sealed interstitial space.

An apparatus for providing an interstitial space to the surface of wall, the apparatus comprises: an adhesive layer; a layer of fluid impervious and weather proof material in form of a tape, the tape partially overlapping itself; a layer of spacer material situated between the surface of the tape facing the wall and the surface of the adhesive layer distal from the wall. The spacer material has ends which are encapsulated, the apparatus providing a sealed interstitial space.

An underground storage tank maintenance system includes a system of monitors to determine pressure and humidity in the system. Inert gas may be supplied into the ullage of the tank. The inert gas may first pass through an interstitial space as between the primary storage and secondary containment, and then passed into ullage to capture contaminants on the way out of the vent to atmosphere. The system and method prevent hydrocarbons exiting to atmosphere. Humidify sensors may be set along vent to determine water contamination and trigger drying cycles. Pressure readings help identify system leaks.

A container for storing liquids includes an inner layer including a storage space for storing liquids; an outer layer; and multiple spacers fastened between the inner layer and the outer layer to form multiple compartments. The spacer includes a first surface and a second surface. The first surface is secured to an adhesive layer of the inner layer. The first surface has many cavities. The second surface is secured to the outer layer and having projections complimentarily secured to the cavities. A manufacturing method of the container is also provided. Therefore, it can solve the problem permeation and adhesive failure caused by leaking. It can generate an early alarm by detecting any leaking or permeation of the container.

A container for storing liquids includes an inner layer including a storage space for storing liquids; an outer layer; and multiple spacers fastened between the inner layer and the outer layer to form multiple compartments. The spacer includes a first surface and a second surface. The first surface is secured to an adhesive layer of the inner layer. The first surface has many cavities. The second surface is secured to the outer layer and having projections complimentarily secured to the cavities. A manufacturing method of the container is also provided. Therefore, it can solve the problem permeation and adhesive failure caused by leaking. It can generate an early alarm by detecting any leaking or permeation of the container.

A method and system for detecting and identifying location of leaks in an above-ground storage tank (AST) bottom or wall is provided. The method employs a temporary liner on top of the tank bottom or at the interior of another tank surface capable of holding a vacuum. The temporary liner is installed on the top (interior) side of the surface, sealing the liner to the shell and any potential penetrations such as columns. A temporary spacer may be employed to help ensure the liner itself does not seal well to the bottom. A vacuum is pulled between the liner and the tank surface. After the vacuum is pulled, a portable acoustic device is utilized to target noise generated by air entering the vacuum evident of a gas or liquid leak.