Display trap efficiency with depth measurements of FOG and solids

https://mill-wiki.win/index.php/Partnering_with_a_Grease_Trap_Company:_Daily_Preparedness_and_Regulatory_Compliance_for_Food_Services

Screen trap performance with depth measurements of FOG and solids, triggering pump-outs at 25% capability to maintain efficiency, avoid nasty smells, and meet most municipal pretreatment standards.