Monitor trap performance with depth measurements of FOG and solids

https://wiki-global.win/index.php/Grease_Trap_Service_Fundamentals:_Keeping_Food_Service_Operations_Clean_and_Code-Compliant_20927

Display trap efficiency with depth measurements of FOG and solids, triggering pump-outs at 25% capability to maintain efficiency, prevent foul smells, and satisfy most local pretreatment standards.