⛽ 20. The Truth About Aluminum Fuel Tanks
🗣️ The Myth: "The fuel tank is aluminum, so it cannot rust or degrade."
⚙️ The Technical Reality:
Aluminum is an excellent marine material—provided it remains dry and well-ventilated. The problem is that most tanks are built deep into the bilge, often surrounded by sound-deadening foam or resting directly on the hull, constantly exposed to condensation.
⚠️ The Hidden Risks:
When wet material (like soaked foam or dirty bilge water) stays in contact with aluminum, aggressive poultice corrosion occurs. The metal is eaten from the outside in, creating tiny invisible pinholes on the bottom. Diesel floods the bilge. Because tanks are usually installed before the deck goes on at the factory, replacing one literally requires cutting open the salon floor with a chainsaw. A massive financial hit.
🔬 The Evidence Method (NDT & Analys):
Borescope/endoscope inspections under the tank base and Ultrasonic Thickness Gauging (UTG) to locate compromised plating before structural failure.
⚖️ The Chairman's Verdict:
A hidden diesel leak under the cabin sole is a financial and environmental disaster. We evaluate internal tank integrity using NDT, not assumptions.
➡️ Secure your hidden systems: