Section R. 325.11112 - Storage tanks generallyRule 1112. All storage tanks, including hydropneumatic or gravity storage tanks which are used for the storage of finished water, shall meet all of the following requirements:
(a) Be watertight below the maximum water level elevation.(b) Be constructed with materials and coatings approved by the department pursuant to part 21 of these rules.(c) Have no unprotected openings.(d) Be provided with access to the inside of the tank for inspection or repair.(e) Be capable of being isolated from the distribution system and drained without interrupting service to users or customers.(f) Prevent sediment or debris which may collect in the tank from entering the distribution system.Mich. Admin. Code R. 325.11112