§ 59-11. Venting of tanks.

Latest version.

A.
Each individual storage tank shall have an open or automatically operated "Ventpipe" of ample size to prevent abnormal pressure in cases of fire or when filling. In no case shall this be less than 1 1/4 inch iron pipe size.

B.
The lower end of the vent pipe shall extend through the top of the tank for a distance of not more than one inch.

C.
The vent pipe shall extend from the tank to the outside air, terminating at a point outside of the building two feet above the level of the highest reservoir from which the tank may be filled and preferably not less than two feet measured vertically or horizontally from any window or other building opening. Outer ends of the vent, unless automatically operated shall be provided with a return bend and/or a weather-proof hood.

Amended 10-5-1948

                    
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