14.—(1) Any water fitting conveying–
(a)rain water, recycled water or any fluid other than water supplied by a water undertaker; or
(b)any fluid that is not wholesome water;
shall be clearly identified so as to be easily distinguished from any supply pipe or distributing pipe.
(2) No supply pipe, distributing pipe or pump delivery pipe drawing water from a supply pipe or distributing pipe shall convey, or be connected so that it can convey, any fluid falling within sub-paragraph (1).