Subject to the following provisions of this section, it shall be the duty of a water undertaker to cause the water in such of its water mains and other pipes as—
to be laid on constantly and at such a pressure as will cause the water to reach to the top of the top-most storey of every building within the undertaker's area.
Nothing in subsection (1) above shall require a water undertaker to provide a supply of water at a height greater than that to which it will flow by gravitation through its water mains from the service reservoir or tank from which that supply is taken.
For the purposes of this section a water undertaker shall be entitled to choose the service reservoir or tank from which any supply is to be taken.
Nothing in subsection (1) above shall impose any duty on a water undertaker to maintain the constancy or pressure of any supply of water during any period during which it is reasonable for that supply to be cut off or reduced for the purposes of the carrying out of any necessary works.
The Secretary of State may by order modify the application of the preceding provisions of this section in relation to any water undertaker.
The Secretary of State shall not make an order under subsection (5) above except—
Subject to subsection (6) above, the power of the Secretary of State to make an order under subsection (5) above shall be exercisable by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament
An order under subsection (5) above may—
The obligations of a water undertaker under this section shall be enforceable under section 18 above by the Authority.
In addition, where a water undertaker is in breach of a duty under this section, the undertaker shall be guilty of an offence and liable—
In any proceedings against any water undertaker for an offence under subsection (10) above it shall be a defence for that undertaker to show that it took all reasonable steps and exercised all due diligence to avoid the commission of the offence.