All Rates made by the said Commissioners previously to the Commencement of this Act, or so much thereof as may not have been levied and paid, shall be levied by and paid to the Metropolitan Board of Works, and such Board shall have the same Rights and Remedies in all respects in relation thereto as would have been had and might have been exercised by the said Commissioners; but all such Rates respectively shall, so far as Circumstances admit, be applied to the same Purposes as the same would have been applicable to in case the Powers of the said Commissioners had continued in force, and shall for the Purposes of such Application (where the Circumstances so require) be paid over by the Metropolitan Board of Works, or by their Order, to the Vestry or District Board having the Management of the Sewers in any Parish or District under this Act, or as such Vestry or Board may direct.