All water service pipes and their connections to the water system must be inspected and approved in writing by the code enforcement officer before they are covered, and the code enforcement officer shall keep a record of such approvals. If the code enforcement officer refuses to approve the work, the plumber or property owner must proceed immediately to correct the work. Every person who uses or intends to use the municipal water system shall permit the code enforcement officer to enter the premises to inspect or make necessary alterations or repairs at all reasonable hours and on proof of authority.