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Self-Rising Onion Tanks

Question: I am wondering if you have a 1000 gallon onion tank? I see that you have both low side and high side onion tanktanks. Is there any specific difference between these tanks other than the height of the side?

Answer: Thank you for contacting us! The Onion Tanks are designed in both a high side and low side tank version and typically features a self-rising foam collar. The typical height of a low side onion tank would be around 33 inches (33") while the height of a high side onion tank can be anywhere from 40 to 96 inches (40" to 96").

Questions? We can help! Call our team at +1-772-646-0597 or fill out our quote request form to discuss your requirements.

Onion Tank Construction

The construction of an onion tank is similar to the design of our collapsible tanks, in the sense that the tank will be made from the fabric that is best equipped to handle your liquid material. Fabrics can include materials that are equipped to handle drinking water, as well as fuel, chemicals, and several other contaminated items.

onion water tankIn general, each onion tank typically contains that following features that help to create a safe and self-supported containment tank.

  • Reliable Material Construction
  • Self-Rising Foam Collar
  • Flange Fittings
  • Several Specific Fittings Available Upon Request
  • High or Low Side
  • High Side Capacities: 250 to 20,000 gallons
  • Low Side Capacities: 250 to 10,000 gallons


Due to its open top and ability to be self-supporting, these onion tanks have been used in a wide range of applications for storage of liquids such as drinking water, chemicals, fuel, non-potable water and more. Applications where you might find the onion tank in use include:

  • onion tankTemporary Dump Containers
  • Fire Fighting Water Storage
  • Construction Site Water Supply
  • Drinking Water Storage
  • Decontamination Pools
  • Secondary Containment for Tanks or Parts
  • Chemical Mixing Tanks
  • Hazardous Material Storage

When compared to other tanks, the 1000 gallon onion tank can offer a self-supporting style, reliable storage options, and several different materials options. Dimensions for both an high side and low side tank are as follows:

Low Side Tank

  • Base Diameter: 9'5"
  • Top Diameter: 6'11"
  • Filled Height: 33"

High Side Tank

  • Base Diameter: 8'6"
  • Top Diameter: 5'6"
  • Filled Height: 44"


One of the best advantages of this type of tank is its ability to be deployed quickly in several different locations. When empty, this onion tank should lie flat allowing the tank to be easily moved from one location to the next. This can be especially useful in emergency situations, as it allows the tank to be quickly transported to new locations.

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Questions? We can help! Call our team at +1-772-646-0597 or fill out our quote request form to discuss your requirements.