Subject to the following provisions of this section, a water undertaker may require the provision of a separate service pipe to any premises . . . which—
Where the supply of water to two or more houses is provided wholly or partly by the same service pipe, the water undertaker shall not require the provision of separate service pipes to those houses until—
Any dispute between a water undertaker and any other person as to whether any condition of a kind mentioned in subsection (2) above has been complied with may be referred to the Authority for determination under section 30A above by either party to the dispute.
If, in the case of any such premises as are described in subsection (1) above, the water undertaker which provides a supply of water to those premises serves notice on the consumer requiring the provision of a separate service pipe and setting out the power of the undertaker under subsection (4) below—
and
If a person upon whom a notice has been served for the purposes of subsection (3) above fails to comply with the notice, the water undertaker may—
Without prejudice—
any works carried out by a water undertaker by virtue of the provisions of the said paragraph (b) or of subsection (4) above shall be necessary works for the purposes of this Chapter.