If any such Drain, Privy, or Cesspool be on Inspection found to have been constructed, after the passing of the special Act, contrary to the Directions and Regulations of the Commissioners, or contrary to the Provisions of this or the special Act, or if any Person, without the Consent of the Commissioners, construct, rebuild, or unstop any Drain, Privy, or Cesspool which has been ordered by them to be demolished or stopped up or not to be made, every Person so doing shall be liable to a Penalty not exceeding Five Pounds; and the Commissioners may cause such Amendment or Alteration to be made in any such Drain, Privy, or Cesspool as they think fit; and the Expence attending any such Amendment or Alteration shall be paid by the Person by whom such Sewer was improperly constructed, rebuilt, or altered, and shall be recoverable from him as Damages.