I. – Collective water misting systems are supplied directly with water from a water distribution network intended for human consumption which has not undergone any heat treatment.
II. – If it is not possible to connect to a water supply intended for human consumption, the system is supplied by a water supply that complies with the conditions defined in articles R. 1321-2 and R. 1321-3 throughout the period of use of the collective misting system.
III. – It is forbidden to add any substance, mixture of substances or commercial preparation to the water supplied to the collective water misting system in order to alter its physico-chemical or microbiological quality, or its olfactory and visual properties, with the exception of products for treating water intended for human consumption used under the conditions defined in article R. 1321-50.