It shall be unlawful for any person, firm, or corporation to construct, erect, or cause to be constructed, erected or commence to construct or erect in the town any swimming pool unless and until plans for the swimming pool have been approved by the director of health or an inspector duly appointed by him and a written permit issued by the director of health or his duly appointed inspector for the construction or erection of a swimming pool.
('66 Code, Appendix VIII, § 2) Penalty, see § 153.99