According to one embodiment, a vaporizing system comprises first and second tanks that can accumulate liquid source and first, second, and third pipes. The first pipe allows first gas to be sent out of the first tank. The second pipe allows second gas to be sent out of the second tank. The third pipe is connected to the first and second pipes and allows the first and second gas to be sent out to an external apparatus. The first tank is placed on an upper side of the second tank in a stacked manner.

A pumping device has a container, an inlet pipe, a float barrel, and a discharging pipe. The container has a box containing water and a first gas, and a pressure gauge and a check valve mounted to the box. The inlet pipe connects to a water supply and has a second section erectly disposed within the box and communicating with an inside of the box. The float barrel is disposed within the box, contains a second gas, and has an opening. The second section is mounted through the opening. The discharging pipe has two opposite ends respectively communicating with a water reservoir and the inside of the box. The first gas has a pressure larger than 1 atm. The second gas has a pressure less than 1 atm. Water enters the float barrel. A water level inside the float barrel is higher than a water level inside the box.

A pumping device has a container, an inlet pipe, a float barrel, and a discharging pipe. The container has a box containing water and a first gas, and a pressure gauge and a check valve mounted to the box. The inlet pipe connects to a water supply and has a second section erectly disposed within the box and communicating with an inside of the box. The float barrel is disposed within the box, contains a second gas, and has an opening. The second section is mounted through the opening. The discharging pipe has two opposite ends respectively communicating with a water reservoir and the inside of the box. The first gas has a pressure larger than 1 atm. The second gas has a pressure less than 1 atm. Water enters the float barrel. A water level inside the float barrel is higher than a water level inside the box.

A trench is dug under an above ground water storage tank either before erection of the walls or after the wall is erected. A (rectangular) sump is preferably made of ? inch steel. It serves as a conduit from an inner tank liner port to an outside tank fill or drain port. The system eliminates hoses hung over the top edge of the tank wall. A pump can fill the tank from the outer port. The tank can be drained using head pressure of the water and/or a pump.

The invention described herein relates to reservoirs within appliances. The present invention includes a reservoir having one or more tanks having adaptors and tubing which may be thermally welded, crosslinked, and/or overmolded. Particular embodiments of the present invention include reservoirs, reservoir systems including a reservoir, processes for forming a reservoir, and processes for forming the aforementioned reservoir systems.

A fluid container adapted for leak proof connection with one or more substantially similar fluid containers, wherein a first cylindrical body with a first top neck and a first bottom recess is vertically stacked with at least a second cylindrical body with a second top neck and a second bottom recess. The second top neck of the second body is received within the first bottom recess of the first body, and the first male valve is received in the first top neck of the first body, and a second male valve is received within the second top neck of a second body. In addition, a first female valve is received within the first bottom recess of the first body, and a second female valve is received in the second bottom recess of the second body. In this manner, the first and second bodies are vertically stacked, and the second male valve of the second body is received within the first female valve of the first bottom recess of the first body for allowing movement of liquid between the first and second bodies.

A trench is dug under an above ground water storage tank either before erection of the walls or after the wall is erected. A (rectangular) sump is preferably made of ? inch steel. It serves as a conduit from an inner tank liner port to an outside tank fill or drain port. The system eliminates hoses hung over the top edge of the tank wall. A pump can fill the tank from the outer port. The tank can be drained using head pressure of the water and/or a pump.

A fluid container adapted for leak proof connection with one or more substantially similar fluid containers, wherein a first cylindrical body with a first top neck and a first bottom recess is vertically stacked with at least a second cylindrical body with a second top neck and a second bottom recess. The second top neck of the second body is received within the first bottom recess of the first body, and the first male valve is received in the first top neck of the first body, and a second male valve is received within the second top neck of a second body. In addition, a first female valve is received within the first bottom recess of the first body, and a second female valve is received in the second bottom recess of the second body. In this manner, the first and second bodies are vertically stacked, and the second male valve of the second body is received within the first female valve of the first bottom recess of the first body for allowing movement of liquid between the first and second bodies.

Stackable frac tanks for storing fluid which include a first tank and a second tank stackable atop of the first tank. A fluid connection device is affixed to the first and second tanks to fluidly connect the first and second tanks together. The stackable frac tanks may include a structural support frame interposed between the first and second tanks.

Stackable frac tanks for storing fluid which include a first tank and a second tank stackable atop of the first tank. A fluid connection device is affixed to the first and second tanks to fluidly connect the first and second tanks together. The stackable frac tanks may include a structural support frame interposed between the first and second tanks.