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calculating the suction tank net capacity in NFPA 22 (2018 edition)

Question asked by hassanelgindy on Jun 12, 2019

calculating the suction tank net capacity in NFPA 22 (2018 edition)

There is a contradiction between the following two items in calculating the suction tank net capacity:

- item 4.1.4: it is the number of gallons between the inlet of the overflow and the level of the vortex plate.  

- item A4.1.4: it is the number of gallons between the level of water one foot below the inlet of the overflow and       the center of the suction pipe.

please clarify.

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