b'Grease Trap & FOGManagementGrease Trap Management Services Why Metro Rod? Installation of grease traps and FOG Grease traps should undergo routine management systems maintenance every 2 - 3 months to Pre-cleaning before grease trap installation ensure they remain in optimal condition and prevent the build-up of fats, oils, Emptying and safe disposal of fats, oils, and grease.and greaseRoutine maintenance and repairs At Metro Rod, we work with you to design a grease trap maintenance schedule tailored to your business, helping you save money and ensure your kitchen is free from disruption.0800 66 88 00metrorod.co.uk'