39. Cooling of water.- In every factory wherein more than two hundred and fifty workers are ordinarily employed- (a) The drinking water supplied to the workers shall from the 16th of April to the 30th September, in every year, be cooled by ice or other effective method: Provided that if ice is placed in the drinking water, the ice shall be clean and wholesome and shall be obtained only from a source approved in writing by the Health Officer; (b) the cooled drinking water shall be supplied in every canteen lunch room and rest room and also at conveniently accessible points throughout the factory which for the purpose of these Rules shall be called "Water Centres"; (c) the water centres shall be sheltered from the weather and adequately drained; (d) the number of water centres to be provided shall be one "Centre" for every 150 persons employed at anyone them in the factory; Provided that in the case of a factory where the number of persons employed exceeds 500 it shall be sufficient if there is one such "centre" as aforesaid for every 150 persons upto the first 500 and one for every 500 persons thereafter; (e) every water centre shall be maintained in a clean and orderly condition; (f) every water centre shall be incharge of a suitable person who shall distribute the water. Such person shall be provided with clean clothes on duty. Clause (f) shall not apply to any factory in which suitable mechanically operated drinking water refrigerating units are installed to the satisfaction of the Chief Inspector. | 
