In commercial businesses and large-scale industries, there are multiple options available for containing hazardous materials and liquids such as water. Whether it is water or a corrosive chemical, spills are costly and destructive, but there are many available containment systems that help minimize spills and leaks. Understanding the different types of secondary containment systems and their intricacies allows you to find the one that’s best for your specific needs.


Berms are dirt or gravel elevated barriers. They encircle storage tanks or containers to contain spills and leaks, preventing them from spreading into the surrounding area. As a cost-effective secondary containment option, berms are particularly appealing for businesses looking to minimize expenses. However, they demand regular maintenance to ensure that they can still prevent spills.


Sumps are underground systems that collect and contain liquids from spills or leaks. Usually, manufacturers will construct them from concrete. These systems typically come with a pump to remove collected liquids. People will often use sumps in conjunction with other secondary containment systems to gain an additional layer of protection.

Spill Pallets

Spill pallets are portable platforms capable of holding several containers or drums. They feature built-in sumps that capture any spilled liquids, effectively containing them and preventing environmental contamination. Spill pallets are an excellent solution for managing smaller containers or for temporary storage needs, offering both convenience and reliability.


Curbing, a common solution for large storage tanks, is a raised wall that surrounds a tank to contain any potential spills or leaks. Typically using concrete or steel, curbing is a dependable type of secondary containment that will require regular inspections and maintenance to ensure that they stay effective.

Double-Walled Tanks

Comprising an inner tank enclosed within an outer tank, double-walled tanks provide a robust solution for spill and leak containment. In the event of a breach, the outer tank serves as a secondary form of containment, preventing hazardous materials from escaping into the environment. This design makes double-walled tanks a strong choice for storing chemicals or fuel.

Tank Liners

Liners are impermeable barriers that line the tanks you’re using, so even you have a crack in the tank, nothing will spill or leak out. Manufacturers will use a variety of materials, such as PVC and polyethylene, to match the needs of whatever you’re store. That said, you will need to regularly conduct inspections and maintenance regularly to keep your tanks effective.

There are multiple types of secondary containment systems you can choose from, each with its own positives. Each system offers unique benefits, so start by determining your unique needs, then select the secondary containment system that best meets those needs. If that’s secondary containment liners, then you need Flexi-Liner. As experts in the industry, we can design and manufacture the ideal tank liner for all your industrial needs!