Walls, ceilings and floors of milkhouse.

1. The walls and ceilings of the milkhouse must be constructed of smooth, light-colored material which is impervious to water. The minimum height of a ceiling is 9 feet, but in no case may it be less than the height of the bulk tank plus 3 feet. 2. The floors of a milkhouse must be constructed of tile or another equally impervious material and be graded to provide drainage. The juncture of the floor and the wall must be coved with a 2-inch radius.