A residence contains the following fixtures 1) 3 full baths with tank type water closet, a lav, bathtub. 2) 1 laundry with clothes washer and laundry tub. 3) 1 kitchen with dish washer and sink. 4) 3 hose bibs around the house. Developed l ength of the system is 105`. Water pressure is 50 psi. The water service line must be at least ____”.

A residence contains the following fixtures 1) 3 full baths with tank type water closet, a lav, bathtub. 2) 1 laundry with clothes washer and laundry tub. 3) 1 kitchen with dish washer and sink. 4) 3 hose bibs around the house. Developed l ength of the system is 105`. Water pressure is 50 psi. The water service line must be at least ____”.