sprinkling of such Jawna on dnya when the said owners and tenants would, in accord with the restrictions stated above not be permitted to sprinkle, Not more than one hose shall be in use outdoors o* any one premise at any one time for sprinkling, Notwithstanding anything in this Section, where it it considered in the best interests of the City to do so, the City may make further restrictions or prohibitions of water usage according to the time of day, area of the City, sides of the street, or by any other such method as is considered necessary and such restriction or prohibition will be considered to be in effect from publication of a notice thereof in a newspaper circulating in the City. (b) Where an employee of the Engineering Department or one of the City's By-law Enforcement Officers observes the: sprinkling of lawns or gardens taking place upon premises upon which such sprinkling is not permitted under the provisions of this Section he shall inmediately contact some adult person upon the said premises and advise that a violation of this Section is occurring and he shall then turn off or disconnect the vater supply by shutting the stopcock at the property line, or by detaching at the main, and such service shall not be restored until an application pursuant to the provisions of Section 11 of this By-law is made accompanied by a fee of Twenty-five ($25.00) Dellars. Where, in the opinion of a person authorized to enforce the terms of this Section, undue or unreasonable hardship will result if the water is turned off to any particular premise as provided in clause (b) of this Section such person shall, after being satisfied that the unlawful sprinkling of lawns and gardeng has been terminated, refrain from turning off the water supply and shall, instead, proceed under the provisions of Section 30 of thig By-law,