Monitor trap efficiency with depth measurements of FOG and solids

https://spark-wiki.win/index.php/The_Ultimate_Guide_to_Grease_Trap_Cleaning_for_Commercial_Residences_and_Busy_Kitchens_28751

Monitor trap efficiency with depth measurements of FOG and solids, activating pump-outs at 25% capability to maintain effectiveness, prevent foul smells, and fulfill most community pretreatment requirements.