the fixture. The minimum size of individual distribution lines utilized in gridded or parallel water distribution systems shall be as shown in Table 604.5. TABLE 604.5 MINIMUM SIZES OF FIXTURE WATER SUPPLY PIPES MINIMUM PIPE SIZE FIXTURE (inch) Bathtubsa (60″ × 1/2 32″ and smaller) Bathtubsa (larger 1/2 than 60″ × 32″) Bidet 3/8 Combination sink 1/2 and tray Dishwasher, 1/2 domestica Drinking fountain 3/8 Hose bibbs 1/2 Kitchen sinka 1/2 Laundry, 1, 2 or 3 1/2 compartmentsa Lavatory 3/8 Shower, single 1/2 heada Sinks, flushing rim 3/4 Sinks, service 1/2 Urinal, flush tank 1/2 Urinal, 3/4 flushometer valve Wall hydrant 1/2 Water closet, 3/8 flush tank Water closet, 1 flushometer valve Water closet, 3/8 flushometer tank Water closet, one 1/2 piecea
the fixture. The minimum size of individual distribution lines utilized in gridded or parallel water distribution systems shall be as shown in Table 604.5. TABLE 604.5 MINIMUM SIZES OF FIXTURE WATER SUPPLY PIPES FIXTURE MINIMUM PIPE SIZE (inch) Bathtubsa (60″ × 32″ and smaller) 1/2 Bathtubsa (larger than 60″ × 32″) 1/2 Bidet 3/8 Combination sink and tray 1/2 Dishwasher, domestica 1/2 Drinking fountain 3/8 Hose bibbs 1/2 Kitchen sinka 1/2 Laundry, 1, 2 or 3 compartmentsa 1/2 Lavatory 3/8 Shower, single heada 1/2 Sinks, flushing rim 3/4 Sinks, service 1/2 Urinal, flush tank 1/2 Urinal, flushometer valve 3/4 Wall hydrant 1/2 Water closet, flush tank 3/8 Water closet, flushometer valve 1 Water closet, flushometer tank 3/8 Water closet, one piecea 1/2
INTERNATIONAL_PLUMBING_CODE.docx