Diamond Diesel Fuel Polishing

Diamond Diesel provides professional diesel fuel tank inspection and certification services to ensure storage tanks meet safety, environmental, and operational standards. Our inspections help identify compliance issues, reduce spill risk, and support reliable long-term fuel storage for both marine and commercial diesel systems.

We inspect diesel fuel tanks and associated components for proper installation, operation, and regulatory compliance, including:

• Required tank signage and labeling
   
• Proper venting and vent termination
   
• Fill ports, fill gauges, and level gauges
   
• Overfill prevention devices and alarms
   
• Spill containment and spill protection systems
   
• Log books and maintenance records
   

Our inspections verify that all safety systems are present, functional, and correctly configured.

Diamond Diesel performs annual pressure testing and system checks to confirm tank integrity and identify leaks, weak points, or component failures before they become costly or hazardous issues.

We verify that tanks are operated in accordance with the 90% maximum fill rule, ensuring adequate expansion space to prevent overfill events, environmental releases, and damage to tanks or fuel systems. Fill gauges and alarms are evaluated to confirm accurate level indication and proper shutoff thresholds.

Upon completion, customers receive clear inspection documentation supporting compliance, insurance requirements, and operational best practices. Our services assist facilities in maintaining accurate records and readiness for audits or regulatory review.

• Diesel fuel tank inspection and certification
   
• Tank signage and labeling verification
   
• Venting and overfill protection inspection
   
• Spill containment and spill prevention review
   
• Annual tank pressure testing
   
• Fuel level gauges and alarms inspection
   
• Log book and maintenance record verification
   
• 90% fill rule compliance
   

Diamond Diesel delivers professional tank inspection and certification services that help protect people, property, and the environment while ensuring diesel fuel systems remain safe, compliant, and dependable