A 3/4-inch Type L copper tube water distribution pipe has a developed length of 60 feet and serves a branch with a total demand of 8 water supply fixture units (WSFU). Using Table 610.4 and the conditions in Section 610.7, what is the approximate maximum allowable pressure loss per 100 feet for this pipe?

• 5 psi
• 8 psi
• 2.5 psi
• 4 psi