After entry of a judgment for sale of property, a writ shall be issued by the clerk of the court upon application of the judgment creditor and shall be directed to the levying officer in the county where the judgment is to be enforced. A separate writ shall be issued for each county where the judgment is to be enforced. Writs may be issued successively until the judgment is satisfied, except that a new writ may not be issued for a county until the expiration of 180 days after the issuance of a prior writ for that county unless the prior writ is first returned. (CCP 712.010)