In such action evidence of the general reputation of the place shall be competent for the purpose of proving the existence of said nuisance and shall be prima facie evidence of such nuisance and of knowledge thereof and of acquiescence and participation therein on the part of the owners, lessors, lessees, users, and all those in possession of or having charge of, as agent or otherwise, or having any interest in any form of property used in conducting or maintaining said nuisance.