Monitor trap performance with depth measurements of FOG and solids

https://jeffreyexnn391.wpsuo.com/from-inspections-to-pump-outs-grease-trap-service-methods-dining-establishments-count-on

Monitor trap efficiency with depth measurements of FOG and solids, setting off pump-outs at 25% capability to maintain efficiency, avoid foul odors, and meet most community pretreatment requirements.