The power conferred on a water undertaker to impose conditions under section 47 above for the purposes of metering—
shall be exercisable in relation to any premises even if the undertaker has no immediate intention, when the power is exercised, of fixing charges in relation to those premises by reference to volume; but
shall not be exercisable so as to require the alteration or removal of any pipe laid or plumbing installed before 1st April 1989.
Specifications approved by any water undertaker for the purposes of subsection (2)(c) or (d) of section 47 above may be approved—
in relation to particular premises; or
by being published in such manner as the undertaker considers appropriate, in relation to premises generally or to any description of premises.
Any dispute between a water undertaker and any other person as to the terms of any condition imposed under section 47 above for the purposes of metering shall be referred—
to the arbitration of a single arbitrator appointed by agreement between the undertaker and that person; or
if no agreement is reached, for determination by the Authority under section 30A above.
References in this section to the imposition of a condition under section 47 above for the purposes of metering are references to the imposition of conditions by virtue of subsection (2)(c) or (d) of that section.