No real property of the City shall be disposed of except by resolution. A resolution authorizing the sale of real property of the City shall not be adopted at the meeting at which it is introduced. At least ten (10) days shall elapse between the introduction and final adoption of such a resolution. The proceeds of any sale of such property shall be used as far as possible to retire any outstanding indebtedness incurred by the City in the purchase, construction, or improvement of this or other property used for the same public purpose. If there is no such outstanding indebtedness, the Council may by ordinance or resolution designate some other public use for the proceeds.