Underground Propane Tank Inspection

Oil businesses require to meet safety and professional protocols to ensure a smooth flow of their fuel operations. Additionally, fulfilling these protocols provides security to your employees, keeps you regulatory complaint and builds a positive image of your business.

Network Environmental UK houses all the essentials to provide you with comprehensive services. We are adept at maintaining the safety of your propane tanks, careful inspections by industry experts and providing you with clean tanks through the latest cleaning techniques.

Underground Propane Tank Inspection
Underground Propane Tank Inspection

Our team is always ready to inspect your propane tanks efficiently, paving a smooth way for your business development.

Underground propane tanks are a reliable source for storing propane safely for commercial purposes. They are vast in size and hold a considerable amount of propane to meet the plant’s demands. These tanks are designed to be buried beneath the ground, offering a discreet, space-saving solution for residential, commercial, and industrial applications.

While underground, propane tanks are protected from extreme weather conditions, reducing the risk of damage and ensuring the gas remains stable and secure. However, they may corrode with time due to soil moisture.

Additionally, regularly checking their components and pressure is pertinent to ensure a permanent propane supply and added security to avoid significant loss.

This emphasises the significance of underground propane tank inspection for better safety and continuous industrial operations. Let’s explore what is included in propane tank inspection.

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Underground Propane Tank Inspection

What’s Involved in Propane Tank Inspection?

Propane tank testing ensures propane storage systems’ safe and efficient operation. The inspection involves several essential steps.

Propane is a highly flammable gas, so detecting and addressing leaks is a top priority during inspections. Trained technicians use specialised leak detection equipment, such as gas detectors or soapy water solutions, to identify any gas escaping from the tank, fittings, valves, or regulators.

Propane tanks are often exposed to various environmental conditions, which can lead to corrosion over time.

Corrosion weakens the tank’s structural integrity, making it susceptible to leaks or potential failure. During the inspection, the tank’s exterior is thoroughly examined for signs of rust, pitting, or deterioration. Additionally, the regulator, valves, and fittings are inspected for corrosion.

The relief valve is an important safety component that prevents over-pressurisation of the propane tank. The relief valve is inspected for wear, corrosion, or damage. If any issues are found, the relief valve is promptly replaced to ensure proper functioning. A protective cap is installed on the relief valve to prevent debris, insects, or water from compromising operation.

The regulator is another key component controlling the flow of propane supplied for certain operations. Inspection is pertinent to ensure the proper functioning and the appropriate gas pressure.

A faulty regulator can lead to inefficient gas flow, affecting the performance of appliances and potentially posing safety risks. If any irregularities or malfunctions are detected during the inspection, the regulator is replaced with a new one to ensure smooth and safe operation.

Over time, the tank’s structural integrity is compromised, which can be harmful. External impacts, such as dents or gouges, can cause structural damage to the propane tank.

Dents can create stress points, potentially leading to leaks or even catastrophic failure over time. Experts inspect the tank and clear any flaws with the tank’s body. They carefully evaluate the tank and repair or replace it to ensure its safety and longevity.

Pressure tests are critical to verify the tank’s ability to hold gas at the appropriate levels. Technicians conduct controlled pressure tests to ensure the tank can maintain gas pressure within safe limits. If the tank fails the pressure test, it may indicate a structural issue or potential leak, requiring further investigation and remediation.

Methods for Underground Propane Tank Inspection

With the recent technological advancement, tank inspection companies deploy specific effective techniques to find any defect, along with the widespread visual inspection technique in which the inspector checks the whole tank and looks for any crack or damage.

Pressure Testing:

Pressure testing involves air or water pressure to find any probable crack or damage. In this method, they pressurise the tank with the air or water pressure and look for any significant drop in the pressure if there is any leakage. Hence, they can confirm whether the tank’s structural integrity is intact.

Dye penetrant testing (PT):

This technique exploits the light-emitting nature of a bright dye. Experts fill the cracks with a suitable dye. The dye exhibits a bright colour on the light’s exposure to indicate the defect’s exact location.

Ultrasonic testing (UT):

This method uses sound waves to create a picture of the tank’s interior. Any cracks or defects in the tank will reflect the sound waves differently, showing up as a defect in the receiver.

Magnetic particle testing (MPT):

MPT uses a magnetic field to create a visible pattern on the tank surface. The defects in the tank surface cause the magnetic field to disrupt. Those disruptions become clear on the navigation devices. Later on, the cracks or damages are rectified.
Underground Propane Tank Inspection

Why It’s Important to Have Propane Tank Inspection?

Propane tank inspections are pertinent for several reasons. These inspections improve your propane system’s safety, efficiency and compliance, and environmental performance.

Efficiency: Timely inspections can assist in identifying any structural damage, leakage or corrosion effect. Once identified, these issues can be resolved before time. This improves the performance and efficiency of your system, saving you.

Prolonged Equipment Life: Regular inspections and maintenance of your propane-powered appliances can extend the life of your propane equipment by identifying and addressing potential issues before they lead to repairs or replacements.

Enhanced Safety: Regular propane inspections help identify potential safety hazards, such as gas leaks, damaged equipment, or improper installations, and ensure your entire propane system is working as intended.

Regulatory Compliance: These inspections ensure you meet the governmental bodies’ safety standards.

Peace of Mind: The ultimate benefit of having your tank inspected provides you with a sense of mind peace that you are safe now following professional legal and ethical standards.


It is essential to check the underground propane tanks’ defects, cracks, and pressure fluctuations, as negligence can lead to severe consequences.

Sometimes, even minor leaks can cause catastrophic accidents, so it is better to have expert services to inspect propane tanks timely to save your commercial property and its occupants. Therefore, propane tank inspection is essential to ensure safe operations and regulatory compliance.

To facilitate clients in this aspect, our company, Network Environmental UK, offers reliable and quality services at a reasonable cost.

Housing a skilled team of experienced professionals, we are adept at inspecting above and underground propane tanks. Therefore, using the latest techniques, we can be a considerable partner in the continuous supply of safe fuel operations.


Having regular propane tank inspections is necessary for many reasons:

  • It ensures smooth fuel operations
  • Timely detection of any leakage can be critical to maintaining the safety of your employees.
  • Having well-maintained tanks keeps you compliant.
  • It builds a positive image of your business, getting you more market value.

Propane tanks are durable and can be feasible for fuel operations for almost 30 years.

The gauge is located under the lid of your tank.

Propane expands if it comes in contact with heat. Therefore, to avoid any unexpected explosion, propane tanks are filled up to 80 % for safety purposes.

Whatever your situation, we can handle it

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