Display trap efficiency with depth measurements of FOG and solids

https://wiki-velo.win/index.php/How_a_Grease_Trap_Companies_Keeps_Restaurants_Compliant_and_Ready_for_Daily_Service_45487

Display trap efficiency with depth measurements of FOG and solids, activating pump-outs at 25% capacity to maintain performance, avoid nasty odors, and fulfill most municipal pretreatment requirements.