(1)In this Part—
“discharge pipe” means a pipe from which discharges are or are to be made under section 163 above;
“resource main” means any pipe, not being a trunk main within the meaning of the [1991 c. 56.] Water Industry Act 1991, which is or is to be used for the purpose of—
conveying water from one source of supply to another, from a source of supply to a regulating reservoir or from a regulating reservoir to a source of supply; or
giving or taking a supply of water in bulk.
(2)In subsection (1) above—
“source of supply” shall be construed without reference to the definition of that expression in section 221 below; and
“supply of water in bulk” has the same meaning as in section 3 above.
(3)The powers conferred by Chapter I of this Part shall be without prejudice to the powers conferred on the Authority by any other enactment or by any agreement.