N.A.T.O. The defensive military alliance formed in 1949 by ten european countries. WARSAW PACT A military alliance formed in 1955 by the Soviet Union Netherlands. Norway.
Tank Rings. Tank rings filled with gravel lift the tank above the surrounding grade. This keeps the tank out of standing water and increases the life of the tank bottom.
Save. Compression rings, also called compression fittings, are used in plumbing to either connect two pipes together or connect a single pipe to a valve such as a water shutoff. The actual ring is a flexible rubber circle that sits under a metal nut and gets compressed when the nut is tightened.