Screen trap performance with depth measurements of FOG and solids

https://mill-wiki.win/index.php/Grease_Trap_Service_Basics:_Keeping_Food_Service_Operations_Clean_and_Code-Compliant_28542

Display trap performance with depth measurements of FOG and solids, setting off pump-outs at 25% capacity to maintain effectiveness, prevent nasty smells, and satisfy most local pretreatment standards.