What was found
LAV E VACC WASTE GUAGE READS EMPTY, WHICH ISNT TRUE. ALSO SMELLS LIKE SEWAGE. VERIFIED WITH LAV SERVICES THAT TANK IS EMPTY AND HAS NO LEAKS TOILET OPS CHECK NORMAL, OK TO TOMC APPROVED COMPLIED WITH MEL PLACARD APPLIED. OK TO CONT. INSPECTED AFTER FLIGHT GUAGE WAS INDICATING WASTE. CALLED FOR LAV SERVICE TO EMPTY OUT, SAW GUAGE DROP TO E. SENSORS WORK AS IT SHOULD. USED CLEANING PACKS TO FRESHEN LAV UP.