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What signs indicate a problem with an underground propane tank?

April 5, 2026

Quick Answer

Signs of a problem with an underground propane tank include corrosion, leaks, and unusual odors or sounds, which can indicate a rupture or other issues.

Visual Inspection

When inspecting an underground propane tank, look for signs of corrosion, such as rust or flaking paint, around the tank’s fittings, connections, and valves. Check for any visible signs of damage or wear, such as dents, cracks, or holes, which can compromise the tank’s integrity. Also, inspect the tank’s protective coating, which should be in good condition.

Leak Detection

To detect leaks, conduct a pressure test on the tank by filling it with air and monitoring for any drop in pressure. You can also use a propane detector or sniff the area around the tank for any unusual propane odors. If you suspect a leak, turn off the tank’s valve and contact a professional for assistance.

Maintenance and Testing

Regular maintenance and testing of underground propane tanks can help prevent problems. Schedule annual inspections with a qualified technician who can perform a series of tests, including a hydrostatic test to check for leaks and a visual inspection of the tank’s condition. It’s also essential to keep accurate records of maintenance, inspections, and repairs to ensure the tank remains in good working condition.

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