Waste Oil Tanks
Double Walled Waste Oil Storage Tanks
Unity Fuel Solutions’ Waste Oil tanks are a self-contained, double walled, aboveground oil storage tank – from 264 to 3,434 gallons.
What is Waste Oil?
Any oil, crude or synthetic that has been contaminated with physical and/or chemical impurities. Contamination from being used as lubricants, hydraulic fluids, heat transfer fluids, coolants and other similar purposes.
For more information on specific oils and what is defined as a ‘Used Oil’ refer to the Environmental Protection Agency (EPA) website.
Storing Waste Oil: The Challenges
Recycling of used oil or waste oil is not only good for the environment but makes good business sense. Oil can be used over and over again. Sometimes in the same form or re-purposed for different applications. For example, used motor oil can be refined and sold as motor oil again or reprocessed into furnace fuel oil. In the US, an estimated 380 million gallons of used oil are recycled each year.
A critical part of the recycling process is ensuring used oil is stored in accordance with the EPA’s used oil management standards. Get it wrong and the Environmental Protection Agency (EPA) could impose huge fines, restrictions and even close your business down.
NOTE: State regulations governing the management of used oil might be stricter than EPA’s so contact your state or local environmental agency to determine your best course of action.
Drums are a traditional form of oil storage, both new and used but come with significant risk, particularly in extreme weather conditions.
Apart from being a less space-efficient option, hot summer temperatures can make leaks more likely, particularly if the drums are exposed to the weather.
As it rains, water can be trapped on top of the barrels and submerge the bungs. As the drum heats and cools, air is exchanged between the air space above the waste oil and the atmosphere.
This can result in water that is sitting on top of the bungs being pulled into the oil, ultimately settling at the bottom of the barrel and raising the overall fluid level. As the process continues and more water is accumulated, the barrel can become deformed and push oil out of the bungs, causing a potentially harmful and expensive spill.
Waste Oil Storage Containers: A Modern Day Solution
Aboveground double wall tanks are a modern day solution for the safe storage and transfer of waste oil. A modern day solution that complies with the EPA’s used oil management standards as detailed in Title 40 of the Code of Federal Regulations Part 279.
Our aboveground waste oil tanks are manufactured using a double-walled construction, essentially a tank within a tank.
UNITY WASTE OIL TANKS REMOVE THE NEED FOR TRADITIONAL BUND WALL CONSTRUCTION AND CONTAINMENT
This integral secondary containment system creates an internal self-bunded solution and ensures traditional bund wall containment areas are no longer required.
WASTE OIL Double-Walled Tank = Mild Steel SFL Primary Tank + interstitial space + Secondary Mild Steel Outer Tank. This complies with all secondary containment tank requirements for aboveground storage tanks.
OUR WASTE OIL TANKS COMPLY WITH ALL STATE AND FEDERAL EPA GUIDELINES AND MANAGEMENT STANDARDS FOR THE SAFE STORAGE OF USED OIL

All BLOC tanks meet UL-142, ULC-S601-14 and UN-31-A/Y compliance as standard. All HEDRA tanks meet UL-142 and ULC-S601-14 compliance as standard.
EVERY UNITY FUEL SOLUTIONS STORAGE TANK COMES WITH COMPLETE PEACE-OF-MIND…



STANDARD FEATURES
COMPLIANCE & SAFTEY
- Meets UL-142, ULC-S601-14 compliance as standard.
- (UN-31-A/Y covers BLOC 1000 – 4500 only).
- Waste oil safety decals included.
CONSTRUCTION & DURABILITY
- Double-walled steel construction consisting of an integrated primary and secondary tank design.
- Baffled internally for structural integrity and to reduce product movement.
- Curved roof design for water drainage (Bloc).
- Tanks pressure tested pre-delivery.
- 250–300 micron WHITE paint finish.
- Stainless Steel primary tank optional.
ACCESS & MAINTENANCE
- Heavy duty lockable lids over recessed manway space.
- Aluminium drainage tray inserts into manway space.
- Removable manway for internal cleaning and maintenance.
- Vent pipework, aluminum dipsticks, plus multiple port fittings.
TRANSPORT & HANDLING
- Mobile or stationary tank designs available.
- Modular design for easy transport.
- Forklift pockets to base of tanks.
- Crane lifting points at all corners.
- Tie-down points at all corners.
Waste Oil Tanks For Sale
BLOC Waste Oil Tanks
( * ) Denotes the face that the Pump Bay is located on.
Safe Fill Level | 264 US Gallons |
Capacity | 306 US Gallons |
Length * | 73″ |
Width | 43″ |
Height | 52″ |
Bare Weight | 1,922 lbs |
Bafflle | Yes |
Safe Fill Level | 500 US Gallons |
Capacity | 528 US Gallons |
Length | 90″ |
Width * | 56″ |
Height | 52″ |
Bare Weight | 2,469 lbs |
Bafflle | Yes |
Safe Fill Level | 660 US Gallons |
Capacity | 709 US Gallons |
Length | 90″ |
Width * | 66″ |
Height | 52″ |
Bare Weight | 2,800 lbs |
Bafflle | Yes |
Safe Fill Level | 1,189 US Gallons |
Capacity | 1,268 US Gallons |
Length | 109″ |
Width * | 90″ |
Height | 52″ |
Bare Weight | 3,898 lbs |
Bafflle | Yes |
Safe Fill Level | 1,585 US Gallons |
Capacity | 1,638 US Gallons |
Length | 141″ |
Width * | 90″ |
Height | 52″ |
Bare Weight | 4,639 lbs |
Bafflle | Yes |
Safe Fill Level | 2,113 US Gallons |
Capacity | 2,224 US Gallons |
Length | 192″ |
Width * | 90″ |
Height | 52″ |
Bare Weight | 6,918 lbs |
Bafflle | Yes |
Safe Fill Level | 2,642 US Gallons |
Capacity | 2,906 US Gallons |
Length | 239″ |
Width * | 96″ |
Height | 51″ |
Bare Weight | 9,747 lbs |
Bafflle | Yes |
Safe Fill Level | 3,434 US Gallons |
Capacity | 3,540 US Gallons |
Length | 239″ |
Width * | 96″ |
Height | 55″ |
Bare Weight | 9,707 lbs |
Bafflle | Yes |
HEDRA Waste Oil Tanks
( * ) Denotes the face that the Pump Bay is located on.
Safe Fill Level | 254 US Gallons |
Capacity | 267 US Gallons |
Length * | 54″ |
Width | 43″ |
Height | 50″ |
Bare Weight | 1,547 lbs |
Safe Fill Level | 509 US Gallons |
Capacity | 536 US Gallons |
Length * | 90″ |
Width | 43″ |
Height | 50″ |
Bare Weight | 2,390 lbs |
Safe Fill Level | 775 US Gallons |
Capacity | 816 US Gallons |
Length * | 90″ |
Width | 61″ |
Height | 50″ |
Bare Weight | 2,798 lbs |
Safe Fill Level | 1,086 US Gallons |
Capacity | 1,144 US Gallons |
Length * | 90″ |
Width | 82″ |
Height | 50″ |
Bare Weight | 3,461 lbs |
Safe Fill Level | 2,708 US Gallons |
Capacity | 2,850 US Gallons |
Length | 192″ |
Width * | 90″ |
Height | 50″ |
Bare Weight | 6,314 lbs |
MORE WASTE OIL TANKS IN THE GRANDE RANGE
Waste Oil Tanks also available in the larger Grande Range (up to 28,319 Gallons). Check with UNITY FUEL SOLUTIONS on specifications.