22.—(1) An adequate supply of wholesome drinking water shall be provided for all persons at work in the workplace.
(2) Every supply of drinking water required by paragraph (1) shall—
(a)be readily accessible at suitable places; and
(b)be conspicuously marked by an appropriate sign where necessary for reasons of health or safety.
(3) Where a supply of drinking water is required by paragraph (1), there shall also be provided a sufficient number of suitable cups or other drinking vessels unless the supply of drinking water is in a jet from which persons can drink easily.