Pool must be cleaned and maintained in a sanitary condition.

All swimming pools shall at all times be maintained so as not to constitute a sanitary nuisance. It shall be the duty and responsibility of every person owning, leasing or having an interest, legal or equitable, including but not limited to mortgage-holder, in any property situated in the city upon which is installed, erected or constructed a swimming pool, to maintain said swimming pool at all times in a sanitary condition. Dirt, algae, and scum shall be removed as often as necessary to maintain good sanitary conditions. All swimming pools shall be thoroughly cleansed at least once each week in a manner and by the use of such disinfectant agents or cleansing materials as may be required by the administration and the water in all such pools shall be completely circulated at least twice each week.