The public sewers of the Village may be fully protected against improper use. The Engineer, and his authorized agent, shall have free and unobstructed access to any part of the premises where house drains, cess-pools or water closets, connected with, or draining into said sewers, are laid for the purpose of examining the construction, condition and usage of same, and making necessary alterations or repairs, at any time of the day between the hours of seven a.m. and six p.m. and any owner, occupant or other person on refusing to allow any officer or agent of the Village, access to the premises for such purpose, shall be liable to a fine of not less than five dollars ($5.00) and not exceeding fifty dollars ($50.00).