(1) The work of making connections to foul water sewers and of connecting the same by lateral drains to a drain shall be done by or under arrangements made by the Sewerage Authority and the person or persons employing such connection or lateral drains as a part of a drainage system for the cost of which such person or persons would be responsible shall pay to the Sewerage Authority the cost of providing such connection and such lateral drain wholly, or in such proportion, and in such a time and in such a manner as the Sewerage Authority may determine, having due regard to the degree of benefit.
(2) Where a person had provided a lateral drain for connection to a foul water sewer at his or her own expense and the premises of other persons are subsequently connected thereto, the Sewerage Authority shall make arrangements whereby the person who provided the said drain shall be reimbursed for his or her expenditure in connection therewith in such proportion and in such manner as to the Sewerage Authority may seem equitable.