Preventing Corrosion in Metal Water Storage Tanks

Water tanks are lifelines for homes and businesses, but just like any metal exposed to water, they can rust over time. This rust can lead to gross-tasting water, health problems, and even tank failure!

The good news? Rust is preventable, or at least manageable. By taking proactive steps, you can keep your water tank functioning for years to come. After all, prevention is always better than cure!

In this article, we’ll explore ways to stop rust from attacking your metal water tank. Keep reading to learn how to protect your investment!

What is Tank Corrosion?

Rust never sleeps, especially when it comes to water tanks! Over time, metal reacts with the water and soil around it, causing the tank itself to slowly break down. It’s like the tank is slowly dissolving!

The Environmental Protection Agency (EPA) says that almost half of all buried water tanks show signs of rust by the time they’re 15 years old. That’s a scary statistic!

What  Causes Corrosion in Water Tanks?

When recalling your chemistry lessons, you’ll remember that metals or steels undergo chemical reactions when exposed to water and oxygen, resulting in chemical changes.

Here are some of the primary reasons why corrosion occurs in water storage tanks with metal cages:

  1. Oxidation

The primary cause of corrosion in water tanks is the oxidation of metals. This occurs when oxygen in the water reacts with the metal, causing it to deteriorate. There are two main types of oxidation: galvanic corrosion and chemical oxidation.

Galvanic corrosion happens when different metals are in direct contact or are exposed to battery acid. On the other hand, chemical oxidation results from the interaction between metal ions and atmospheric oxygen.

  1. Rust Formation

Rust is the buildup of iron ions on the surface of a metal object. When iron is exposed to air or water, it undergoes a chemical reaction that converts it into a powdery substance known as rust. Over time, this rust can accumulate on the metal surface, potentially leading to the development of holes that compromise its structural integrity and can cause leaks.

  1. Carbonation

The presence of carbon dioxide in water can trigger corrosion. Carbonation occurs when carbon dioxide interacts with hydrated cement paste in pore water, reducing the inherent alkalinity of concrete. As carbon dioxide from the atmosphere penetrates the concrete, it creates mild carbonic acids within the pore solution of the concrete.

How to Prevent Corrosion in Water Tanks? 

Despite the significant risk of tank corrosion and subsequent damage, there are preventive measures you can implement to mitigate such scenarios.

Here are practical tips to follow:

  1. Ensure proper tank installation
    • Verify that the tank is installed correctly, with its cap securely sealed to prevent groundwater ingress. Regularly inspect seams for signs of leakage.
  2. Schedule regular inspections
    • Arrange for professional inspections promptly when equipment or components show signs of malfunction.
  3. Maintain diligent tank care
    • Follow the manufacturer’s maintenance instructions meticulously during routine upkeep. Avoid overfilling the tank to prevent issues.
  4. Install and upkeep safety valves
    • Ensure all safety valves are installed and functioning properly to prevent tank overflow during emergencies or malfunctions.
  5. Monitor for signs of corrosion
    • Conduct regular checks for stains, bulging, or leaking joints, as these may indicate corrosion. Stay vigilant and perform thorough inspections.

By remaining vigilant and taking proactive steps, you can prevent further damage and maintain your tank in optimal condition.

Worried About Keeping Your Water Tank Safe? We’ve got You Covered!

Maintaining a water tank can be a hassle, with all the inspections and upkeep. But don’t stress! That’s where professional water tank service companies come in.

At NFPA 25 Inspections LA by American Tanks, we’re experts in keeping tanks healthy! We’ve been serving industrial and commercial clients for over 20 years, and we specialize in both tanks and liners. Plus, we’re fully licensed to ensure everything meets the highest safety standards.

We’re always on top of the latest advancements to give you the best possible service.

Contact NFPA 25 Inspections LA by American Tanks today! Let us handle your tank worries so you can focus on what matters.

Call NFPA 25 Inspections LA by American Tanks at +1 800 656 0167

Or email at info@nfpa25inspections.la

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