Does Your Storage Tank Need an Inspection? 7 Signs

Silos and storage tanks hold raw materials, process inputs, and finished products, and most days they simply do their job. That reliability makes it easy to overlook their condition until something visibly goes wrong. By the time it becomes a problem, the consequences could range from compromising the safety of the operation, the quality of products, or delays in schedules. Constant loading, moisture, temperature changes, chemical exposure, etc., can cause cracking, corrosion, deformation, and connection damage over time. Getting familiar with early warnings can enable plants to stay ahead of the issues. This guide covers seven signs your tank may need attention, when to schedule an inspection, and how tank integrity inspection services give a clearer picture than routine observation alone.

Why Regular Silo and Storage Tank Inspection Matters

Inspection works best as part of ongoing asset maintenance, not as a reaction to a visible failure. Storage assets face constant stress from fill and discharge cycles, abrasion, moisture, and the materials they contain. This pressure erodes the structure in a gradual manner, and any early damage that occurs may go unnoticed. Using a systematic method of inspection ensures that the facility is able to learn how the asset is ageing, and it becomes easier to spot any problem before it develops into something bigger.

7 Signs Your Silo or Storage Tank May Need an Inspection

Visible Cracks or Surface Damage

Cracks, dents, and surface damage should not be treated as cosmetic. They can point to structural stress or material fatigue that is not obvious from the outside. Small defects can grow over time, so they are worth examining early.

Corrosion or Rust

Rust patches, peeling coatings, and discolouration often signal material degradation. Corrosion can weaken walls and fittings gradually, and the surface may show only part of the damage.

Leakage or Unusual Moisture

Unexpected dampness, seepage, or material escaping from a tank can indicate a breach somewhere in the containment. Even a small amount of leakage should be investigated and resolved to ensure safety or prevent product loss.

Deformation or Changes in Shape

Bulging, distortion, or settlement can indicate an underlying structural or foundation issue. A tank that no longer holds its original shape may be under stress it was not designed to handle.

Damaged Welds, Joints or Connections

Welds, joints, and connections carry much of a tank’s structural load. Visible deterioration around them calls for closer inspection, since failures at these points can escalate quickly.

Repeated Maintenance or Repair Issues

If the same area keeps needing attention, the visible repair may not be addressing the real cause. A more detailed inspection can help find what is driving the recurring problem.

Unusual Operational Changes

Changes in loading, discharge, vibration, or material flow can reflect a change in the asset’s condition. When a tank starts behaving differently, it is reasonable to look at the tank itself.
One warning sign does not necessarily confirm a serious defect. It does indicate that professional inspection is warranted.

When Should You Schedule a Silo or Tank Inspection?

Beyond visible warning signs, certain events and conditions are good reasons to book an inspection:

• Before putting a new or refurbished tank into service, where applicable
• After major repairs or modifications
• Following an incident, impact or unusual operating event
• When a tank has been in service for a significant period
• When repeated defects or maintenance concerns appear
• As part of a planned inspection and maintenance programme
• When operating conditions or stored materials change

The right timing depends on the tank type, its use, and the applicable standards, so it is best decided together with an inspection specialist.

Why Professional Inspection Is Better Than Relying Only on Visual Checks

Routine walk-arounds are valuable, but they have limits. Operators can spot obvious external issues, yet less visible defects often go unnoticed. Some problems develop in areas that are hard to reach or hidden beneath coatings, insulation, or stored material.

Professional inspectors can choose inspection methods suited to the asset and the suspected issue, such as crack testing where a defect is suspected or thickness measurement where material loss is a concern. Their findings provide maintenance teams with a rationale for what needs to be repaired, what needs to be monitored, and what can be put off for later. This helps to ensure that issues are addressed before they spiral out of control. Industrial inspection services provide this kind of detail for critical assets and also for process equipment such as spray dryer inspection services.

Choosing the Right Tank Inspection Company

Not every provider is equally suited to your asset. When evaluating a tank inspection company, look for:

• Relevant industrial inspection experience in environments similar to yours
• Understanding of silos and storage tanks, including how they are built and how they deteriorate
• Ability to assess different types of defects, from cracks and corrosion to weld issues
• Suitable inspection methods matched to the asset and the concern
• Clear inspection reporting that your team can act on
• Support for further investigation or repair where required

A provider who meets these criteria can do more than find problems. They can help you decide what to do next.

How BioScan Supports Silo and Tank Inspection

BioScan Ltd is an industrial inspection and NDT company that provides solutions for facilities that want to assess the condition of silos and storage tanks. Our Silo Tank Inspection service assists in detecting defects, deterioration, cracks, and other integrity issues that may affect the storage assets.

Our approach looks beyond a single visible problem. Instead of treating one symptom in isolation, inspection helps facilities understand the condition of the asset more systematically, so maintenance decisions rest on the full picture.

This work sits within our broader industrial inspection expertise. Because we understand how silos and tanks operate in a working industrial environment, our findings stay practical and relevant for plant teams. Whether you need Silo and tank inspection services or a wider review of your process assets, our specialists can help you plan maintenance and protect your equipment.

Conclusion

Storage tanks rarely fail without warning. Cracks, corrosion, leakage, deformation, weld damage, repeated repairs and unusual operating behaviour are all signals worth acting on. Pairing those observations with timely professional assessment helps protect safety, product quality and uptime. Tank integrity inspection services offer a structured way to understand what is really happening in and around your assets, and a storage tank inspection can turn uncertainty into clear maintenance decisions.

Not sure about the condition of your tank? Schedule an appointment with BioScan’s inspection specialists today.