......... l I - I THREE- THRE~- I SINK COMPARTMENT l+- HAND COMPARTMENT SINK I TTFD______..-~ INCORRECT INSTALLATIONS -r --r SANITIZING I --r COMPARTMENT HAND I I OF SCULLERY I I SINK\ SINK-- .... _ I --r . -----FLOW CONTROL I I 'f r-- VENT DISCHARGE LINE I I / -r VENT f--- I l 1 I SCULLERY I f SINK-~ THREE- ~ ....... __/ I I I COMPARTMENT r.'--.. I FLOW I I SINK~ '--..I CONTROL I I I _,,....~ GREASE TTFD INTERCEPTOR -~ MULTIPLE SINKS GREASE INTERCEPTOR TTFD~ ~ NOTES: - POT SINKS, SCULLERY SINKS, COMMERCIAL KITCHEN SINKS, BEVERAGE SERVICE SINKS, DISHWASHING SINKS, AND SILVERWARE SINKS MUST BE DIRECTLY CONNECTED TO THE DRAINAGE SYSTEM. A FLOOR DRAIN WITHOUT BACKWATER VALVE MUST BE PLACED ADJACENT TO THE FIXTURE. THE FLOOR DRAIN MUST BE INSTALLED ON THE INDIVIDUAL DRAINAGE BRANCH OF THE SINK THAT IS BEING PROTECTED. - TELL-TALE FLOOR DRAIN (TTFD) = FLOOR DRAIN WITHOUT BACKWATER VALVE ii DEPARTMENT OF I LABOR AND INDUSTRY 1/18 Tell-Tale Drains and Three-Compartment Sinks Telephone: (651) 284-5063 (MN Rules, Chapter 4714, Section 704.3) www.dli.mn.gov/ccld/planplumbing.asp