Precast reinforced concrete tanks must:
have a method to lift the tank for an ultimate load that is four times the working load;
undergo proper curing to achieve a compressive strength of 4,000 pounds per square inch before transport, placement, or use; and
have no pipe penetration points or openings in the exterior walls or tank bottom below the tank liquid level, unless designed for a specific operational purpose and approved by the local unit of government.
Fiberglass-reinforced polyester or polyethylene tanks must be protected against deterioration during storage.
October 10, 2013
Copyright © 2013 by the Revisor of Statutes, State of Minnesota. All rights reserved.