In the event any user of the system neglects, fails, or refuses to pay the rates, fees, tolls, and charges fixed by the board of county commissioners for the connection with and use of the system, said user shall not be disconnected from said system or refused the use of said system unless the user is outside the boundaries of the county, but the rates, fees, tolls, and charges due therefor may be certified by the county clerk and recorder to the board of county commissioners of the county in which said delinquent user's property is located and shall become a lien upon the real property so served by said system and collected in the manner as though they were part of the taxes.L. 71: p. 365, § 1. C.R.S. 1963: § 36-29-20.