(See Note A-2.2.8.6.)
(1)
Except as permitted by Sentence (2), where storage tanks for liquids capable of releasing hazardous gases or vapours are connected to a farm building by a piping system, a gas trap or valve shall be installed in the piping system to prevent such gases or vapours from entering the farm building.
(2)
Where storage tanks for liquid manure are connected to a farm building by a piping system, a pull plug is permitted to be installed in the piping system to prevent hazardous gases and vapours from entering the farm building.