SC Plumber Contractor Practice Questions - South Carolina Plumber Contractor Examination Exam

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An isometric shows three private 1.6-gpf bathroom groups on one horizontal fixture branch and no other fixtures. What DFU value should be used to size that branch?

9 DFU, using only the three water closets 15 DFU, using the bathroom-group value of 5 DFU each 18 DFU, adding WC 3 + lav 1 + tub 2 for each group 24 DFU, using the public bathroom-group value

Correct Answer:

15 DFU, using the bathroom-group value of 5 DFU each

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