Public drains etc. to vest in Corporation

(1) All public drains, all drains in, alongside or under any public street, and all sewage disposal works whether constructed out of the Corporation Fund or otherwise, and all works, material and things appertaining thereto, which are situated in the City shall vest in the Corporation. (2) All public and other drains which are vested in the Corporation are hereafter in this Act referred to as municipal drains. (3) For the purposes of enlarging, deepening or otherwise repairing or maintaining any such drain or sewage disposal work so much of the sub-soil appertaining thereto as may be necessary for the said purposes shall be deemed also to vest in the Corporation. (4) All drains and ventilation-shafts, pipes and all appliances and fittings connected with the drainage works constructed, erected or set up out of the Corporation Fund in or upon premises not belonging to the Corporation, whether— (a) before or after the commencement of this Act, and (b) for the use of the owner or occupier of such premises or not, shall unless the Corporation has otherwise determined, or does at any time otherwise determine, vest and be deemed always to have vested in the Corporation.