(1) The Commissioner may lay a main whether within or outside the limits of the Corporation––
(a) in any street ; and
(b) with the consent of every owner and occupier of any land not forming part of a street, in, over or on that land, and may from time to time in respect of repair, alter or renew or may at any time remove any main so laid whether by virtue of this section or otherwise :
Provided that where a consent required for the purpose of this subsection is withheld, the Commissioner may after giving the owner or occupier of the land a written notice of his intention so to do, lay the main in, over or on that land even without such consent.
(2) Where the Commissioner in exercise of the powers under this section lays a main in, over or on any land not forming part of a street or inspects, repairs, alters, renews or removes a main so laid down, in, over or on any such land he shall pay compensation to every person interested in that land for any damage done to, or injurious affection of that land by reasons of the inspection, lying, repair, alteration, renewal or removal of the main.