In the event that the owner is unavailable, or refuses or neglects to cooperate with the Borough with respect to suspected defects as described herein, the Borough may, at its option, enter upon such property and make the necessary repairs to such connection. In such case, the proper officials of this Borough shall forthwith, upon completion of the work, send an itemized bill of the cost of the necessary repairs to the owner, which bill shall be payable forthwith. In case of neglect or refusal by the owner of such property to pay the bill within six months after completion of the necessary repairs to the connection, it shall be the duty of the officials of this Borough to cause a municipal lien, or other legal remedy, for the repairs to be filed, the same to be subject in all respects to the general law provided for the filing and recovery of municipal liens.