25-A DCMR 1530
1530. FUNCTIONALITY - WAREWASHING MACHINES, FLOW PRESSURE DEVICE
Cite as D.C. Mun. Regs. tit. 25-A, § 1530
1530 FUNCTIONALITY ─ WAREWASHING MACHINES, FLOW PRESSURE DEVICE
1530.1 Warewashing machines that provide a fresh hot water sanitizing rinse shall be equipped with a pressure gauge or similar device such as a transducer that measures and displays the water pressure in the supply line immediately before entering the warewashing machine.
1530.2 If the flow pressure-measuring device is upstream of the fresh hot water sanitizing rinse control valve, the device shall be mounted in a six and four millimeter (6.4 mm) or one fourth inch (1/4 in.) Iron Pipe Size (IPS) valve.
1530.3 Subsections 1530.1 and 1530.2 do not apply to a machine that uses only a pumped or recirculated sanitizing rinse.
SOURCE: Final Rulemaking published at 50 DCR 4394 (June 6, 2003); as amended by Final Rulemaking published at 59 DCR 13690 (November 30, 2012).