(7)The water supply to the washing facilities shall be capable of yielding at least 30 litres] a day for each person employed in the factory and shall be from a source approved in writing by the Health Officer: Provided that where the Chief Inspector is satisfied that such an yield is not practicable he may by certificate in writing permit the supply of a smaller quantity not being less than [5 litres] [Substituted by No. 1, dated 24.3.1979.] per day for every person employed in the factory.
