Water tanks are vital assets, serving essential purposes in both residential and commercial settings. However, like any metal exposed to water, they are prone to corrosion over time. It’s crucial to understand that corrosion in water systems can lead to compromised water quality, unpleasant taste, and potential health risks. Furthermore, if left unchecked, corrosion can ultimately cause the complete failure of the water tank.
Fortunately, corrosion in metal water storage tanks can be prevented or managed, ensuring continued effectiveness. As the adage goes, “prevention is better than cure,” so taking proactive steps and being prepared is key, knowing that corrosion can be addressed with appropriate actions.
In this article, we will delve into strategies for preventing corrosion in metal water storage tanks. Be sure to pay attention to these methods to protect your structures from corrosion.
What is Tank Corrosion?
Tank corrosion occurs due to electrochemical reactions between the metal surface and the surrounding soil or groundwater, causing deterioration of the metal surface. In essence, the tank material dissolves in the water within the tank, causing harm to the tank structure.
According to the Environmental Protection Agency (EPA), approximately half of all underground storage tanks show signs of corrosion by the time they reach 15 years old.
What Causes Corrosion in Water Tanks?
Recalling your chemistry class, it’s evident that metals or steels undergo chemical reactions upon exposure to water and oxygen, leading to chemical changes.
Here are some of the primary factors contributing to corrosion in water storage tanks with metal cages:
- Oxidation
Corrosion in water tanks often stems from the oxidation of metals, a process initiated by the interaction between oxygen in the water and the metal surface. This corrosion occurs in two main forms: galvanic corrosion and chemical oxidation.
Galvanic corrosion results from the contact between dissimilar metals or exposure to substances like battery acid. Conversely, chemical oxidation arises from the reaction between metal ions and atmospheric oxygen.
- Rust Formation
Rust formation is another significant contributor to corrosion. When iron is exposed to air or water, it undergoes a chemical reaction, forming iron oxide, commonly known as rust. Over time, this rust accumulates on the metal surface, potentially leading to structural weaknesses and eventual leaks.
- Carbonation
The presence of carbon dioxide in water can exacerbate corrosion, particularly in concrete structures. Carbon dioxide reacts with hydrated cement paste in concrete, a process known as carbonation, reducing the material’s inherent alkalinity. As a result, mild carbonic acids form within the concrete’s pore solution, accelerating the corrosion process.
How to Prevent Corrosion in Water Tanks?
While the risk of tank corrosion and subsequent damage is concerning, there are preventive steps you can take to mitigate these risks. Here are some tips to follow:
- Ensure proper tank installation.
Ensure that the tank is installed correctly, with a securely sealed cap to prevent groundwater leakage. Regularly check the seams for any signs of leaks.
- Schedule regular inspections.
Arrange for professional inspections promptly if any equipment or components show signs of malfunction.
- Maintain your tank diligently.
Follow the manufacturer’s maintenance instructions strictly during routine upkeep. Avoid overfilling the tank to prevent potential issues.
- Install and maintain safety valves.
Ensure that all safety valves are installed and operational to prevent tank overflow during emergencies or malfunctions.
- Check for signs of corrosion.
Regularly inspect the tank for stains, bulging, or leaking joints, as these may indicate corrosion. Stay vigilant and conduct thorough inspections.
By remaining vigilant and taking responsible actions, you can prevent further damage and ensure that your tank remains in optimal condition.
Storage Tank Preservation: Your Trusted Experts
Shielding your tank from harm entails a substantial responsibility, encompassing various factors to consider and adhere to. If you feel overwhelmed by the tasks of tank inspection and maintenance, fret not. Professional water tank service companies can efficiently manage these tasks on your behalf.
At Panel Tanks Vegas by American Tanks, our utmost priority is client satisfaction. With a wealth of experience spanning over two decades, we specialize in industrial and commercial tanks and tank liners. As licensed providers, we ensure adherence to international standards for protection and safety.
We remain abreast of the latest innovations to enhance our service delivery. Reach out to us today and let us know how we can be of assistance to you!
Call Tanks Liners by American Tanks at +1 800 656 0167
Or email at info@americantankliners.com
