Every Vestry and District Board shall from Time to Time, by Order under their Seal, require the Overseers of their Parish, or of the several Parishes in their District, to levy, and to pay over to the Treasurer of such Vestry or Board, or into any Bank in such Order mentioned, and within the Time or Times thereby limited, the Sums which such Vestry or Board may require for defraying the Expenses of the Execution of this Act (and such Orders may be made wholly or in part in respect of Expenses already incurred or of Expenses to be thereafter incurred) ; and every such Vestry and Board shall distinguish in their Orders Sums required for defraying Expenses of constructing, altering, maintaining, and cleansing the Sewers or otherwise connected with Sewerage, and also, where the Act of the Session holden in the Third and Fourth Years of King William the Fourth, Chapter Ninety, or any other Act by virtue whereof Land is rated in respect of Expenses of Lighting at a less Amount in proportion to the annual Value thereof than Houses, or is wholly exempted from being rated in respect of such Expenses, is in force in any Parish, or any Part of any Parish, at the Time of the passing of this Act, distinguish, as regards such Parish, or Part, the Sums required for defraying Expenses of lighting their Parish or District from Sums required for defraying other Expenses of executing this Act; but every such Vestry and Board may cause to be raised as Expenses connected with Sewerage such Portion of the Expenses incident to the Conduct of their Business in relation to Sewerage, in common with the Conduct of their other Business under this Act, as to such Vestry or Board may seem just; and the Overseers or Collectors, in the Receipts to be given for the Sums levied or collected by them, shall distinguish the Rate in the Pound required for Sewerage Expenses, and the Rate required for the other Expenses of this Act.