Where a nuisance exists upon property, and is the outgrowth of the usual, natural or necessary use of the property, the landlord thereof or his agent, or the tenant or his agent and all other persons having control of the property on which such nuisance exists shall be the authors thereof, and shall be equally liable therefor; but where any such nuisance shall arise from the unusual or unnecessary use to which such property may be put, or from business use to which such property may be put, or from business thereon conducted, then the occupants and all other persons contributing to the continuance of such nuisance shall be the authors thereof. (Prior code § 16-3)