Upon default in payment, the lands so assessed shall be sold in the same manner in which real property in such city is sold for the nonpayment of general municipal taxes, and be subject to redemption within one year from the date of sale in the same manner as such real property is redeemed from such delinquent sale, and upon failure of such redemption, shall in like manner be sold or pass by deed to the city. The city shall not, however, be required to pay into the assessment fund any part of such delinquency until such property be redeemed or sold and money received therefor.