NM CID MM-1 Practice Questions - New Mexico CID MM-1 Plumbing Examination Exam

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A hydromechanical grease interceptor (HGI) is sized in gallons per minute and grease-retention pounds, while a gravity grease interceptor is sized in gallons of liquid volume. For an HGI, UPC 2021 requires:

Using Table 1014.3.6 gallon volumes as if it were a gravity tank Omitting the vent because the unit is mechanical Connecting toilets through the HGI to maintain a water seal Sizing from the manufacturer’s rated flow and the connected fixture load, with a flow-control device where required by the listing

Correct Answer:

Sizing from the manufacturer’s rated flow and the connected fixture load, with a flow-control device where required by the listing

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