An authority who exercise the powers conferred upon them by this section shall repay to the person constructing the drain or sewer the extra expenses reasonably incurred by him in complying with their requirements and, until the drain or sewer becomes a public sewer, they shall also from time to time repay to him so much of any expenses reasonably incurred by him in repairing or maintaining it as may be attributable to their requirements having been made and complied with, and, if any question arises as to the amount of any payment to be made to him under this subsection, that question may on his application be determined by a court of summary jurisdiction, or he may require it to be referred to arbitration.
If any person who under this section has been required by a local authority to construct a drain or sewer in a particular manner constructs it otherwise than in accordance with the requirements of the authority, he shall be liable to a fine not exceeding fifty pounds, but without prejudice to the right of the authority to avail themselves of any other remedy.
Nothing in this section shall apply in relation to so much of any drain or sewer as is proposed to be constructed by a railway company or dock undertakers in or on land which belongs to them and is held or used by them for the purposes of their undertaking.