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Chemical storage tanks aren’t just for wastewater treatment plants. Poly Processing tanks are found in dozens of industries nationwide, from agriculture to manufacturing to pharmaceuticals and beyond. We work with almost any business that uses chemicals. We design and manufacture the right storage tank system for your specific application.  

Your double walled tank could be violating the Code of Federal Regulations (CFR) without your knowledge — even if there’s nothing wrong with the tank itself. The CFR contains requirements designed to protect the environment from exposure to hazardous chemicals. 

Poly Processing tanks are used worldwide for water and wastewater treatment applications, but our tanks are also found in dozens of industries as well. We’re able to work with and provide solutions to a wide variety of businesses and organizations that use tanks to store chemicals and other materials.

Most chemicals stored in polyethylene tanks require venting. In some instances, the harmful fumes emitted from the chemicals can’t be directly released to the atmosphere. Fume scrubbers remove or neutralize the harmful fumes before they exit the system. 

When you design a chemical storage tank system, you have to consider the factors that impact the tank’s service life. Not only do you have to make sure that the tank material and fitting materials are compatible with the chemical you’re storing, it’s also important to consider the functionality of the tank — for example, how it responds to pressure.

You need to know exactly how much pressure your chemical storage tank can safely handle. This is an issue for every chemical tank, no matter what material it’s made of. Fortunately, cross-linked polyethylene storage tanks have remarkable durability compared to many other materials. That said, you need to know your tank’s pressure limits.

For many industries and facilities, oxygen is bad news for some chemicals stored in tank systems. Often, when the storage material comes in contact with oxygen, the substance oxidizes and degrades, or it can dry out. In any scenario, coming into contact with oxygen means you’ve lost product — which translates to less revenue and costs of replacement.

Tank blanketing helps prevent contact with oxygen, and Poly Processing is your partner for protecting your stored materials.

One of the most important design considerations of any chemical storage tank system is the use of flexible connectors and isolation valves. When paired correctly, these accessories will not only help ensure your storage tank’s longevity, they can also protect the tank from hinge points that cause dangerous leaks.

When you’re filling your chemical storage tank, it is important to ensure the safety of employees and equipment and to prevent loss of product. A fill line helps prevent spills while making it easy and efficient to fill the tank.

Reliably knowing the level of the liquid in your chemical storage tank is critical to maintaining your operations without interruption. Not only is the level an indicator for ordering more chemical, but certain chemicals have to be stored at a specific level to maintain their properties or operational requirements.


A level gauge monitors the liquid level of the chemical you’re storing in your polyethylene tank. There are several types of gauges, including clear tube level gauges and ultrasonic level gauges. While Poly Processing can provide a variety of level indicators, we almost always recommend our reverse float gauge.

Various types of chemical storage systems have handrails along the top of the tank, but Poly Processing tanks don’t. Polyethylene tanks can’t support handrails, and the tanks shouldn’t be walked on. The domed surface can be very slippery, and the plastic can become brittle over time and possibly crack under a person’s weight. So how do you safely inspect manways, check gauges, and service level sensors or mixers?