For the purpose of the provisions of this Chapter, any pipe which is inclined to the horizontal at an angle of less than 45 degrees shall be deemed to be a horizontal pipe, and any other pipe shall be deemed to be a vertical pipe.
For the purpose of the provisions of this Chapter, any pipe which is inclined to the horizontal at an angle of less than 45 degrees shall be deemed to be a horizontal pipe, and any other pipe shall be deemed to be a vertical pipe.