18-29-708.3.1 Horizontal drains within buildings.
   All horizontal drains shall be provided with cleanouts located not more than 100 feet (30.48 m) apart, except that the maximum shall be 50 feet (15.25 m) for drains 4 inches (100 mm) diameter or less, 150 feet (45.7 m) for drains 10 inches (250 mm) diameter or larger.