domestic water tank linings repair

Commercial water storage tanks are crucial for a variety of industries, providing a reliable supply of water for processes, firefighting, and other essential functions. One of the critical components of these tanks is the lining, which protects the tank from corrosion, contamination, and leaks. Understanding the lifespan of these linings and recognizing signs of potential failure is vital for maintaining the integrity and safety of water storage systems.

When is Water Tank Linings Repair Necessary

The longevity of a commercial water storage tank lining can vary significantly depending on several factors, including the type of lining material, the environment in which the tank operates, and the quality of maintenance. On average, high-quality linings can last anywhere from 10 to 20 years. However, this can be extended with proper maintenance and regular inspections.

Types of Linings:

  1. Epoxy Linings: Known for their durability and resistance to chemicals, epoxy linings can last between 10 to 20 years with proper care.
  2. Polyurethane Linings: These linings offer excellent flexibility and chemical resistance, typically lasting 15 to 20 years.
  3. Cementitious Linings: Often used for their cost-effectiveness and ease of application, cementitious linings may last around 10 years but can be less durable in harsh environments.

Signs of Lining Failure

Tank linings repair companies look for various indicators that suggest a lining may be nearing the end of its useful life or failing. Here are some critical signs they watch for:

1. Blistering or Bubbling:

  • Description: Blisters or bubbles can form under the lining due to trapped moisture or air, indicating adhesion issues.
  • Implications: This can lead to delamination, where the lining separates from the tank surface, exposing it to corrosion.

2. Cracks and Pinholes:

  • Description: Small cracks or pinholes can develop in the lining due to physical damage, thermal expansion, or aging.
  • Implications: These defects can allow water to seep through, leading to corrosion of the tank material and potential contamination of the stored water.

3. Discoloration or Staining:

  • Description: Changes in the color of the lining or the appearance of stains can indicate chemical reactions or contamination.
  • Implications: This can suggest that the lining is deteriorating and may no longer provide adequate protection against the stored water’s contents.

4. Softening or Tackiness:

  • Description: A lining that feels soft, sticky, or tacky to the touch may be breaking down due to chemical exposure or age.
  • Implications: Such a lining is no longer providing a robust barrier and is likely to fail, necessitating immediate attention.

5. Rust Streaks or Corrosion:

  • Description: Visible rust streaks or signs of corrosion on the tank’s exterior can indicate that the lining is compromised and allowing moisture to reach the metal.
  • Implications: This is a severe sign that the lining has failed, and corrosion is actively damaging the tank structure.

Tank Lining Repairs, Maintenance, & Inspection

Regular inspections are crucial for detecting these signs early and preventing catastrophic failures. Tank lining repairs companies typically perform comprehensive assessments that include:

  • Visual Inspections: Thoroughly examining the lining for any visible signs of damage or wear.
  • Ultrasonic Testing: Using ultrasonic devices to detect thinning areas in the lining that may not be visible to the naked eye.
  • Adhesion Testing: Checking the adhesion strength of the lining to the tank surface to ensure it remains intact and effective.


The lifespan of commercial water storage tank linings can be extended significantly with regular maintenance and early detection of issues. By understanding the signs of lining failure and conducting regular inspections, businesses can ensure the longevity and reliability of their water storage systems. Water tank lining repairs companies play a crucial role in this process, providing expertise and services that keep water storage tanks in optimal condition, safeguarding both the infrastructure and the quality of the stored water.