QUESHON 5 Theory of constraints and quality {13 marksle' 25"Zonal Solutions manufactures re retardant used to keep flames from spreading in forest res. The retardant creates a chemical re break and is dropped from large aircraft called water bombers. The mix consists bf 85% water, l'lf: salts {typically fertilizer), 5% minor ingredients and a colorant to make the retardant yisible so pilots can see where earlier drops were made and accurately aim subsequent drops;-l Ms plant, where the retardant is made, consists of two departments, Blending and Milling: