can you have a shootout with safety googles and a 250 fps airsoft gun?
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End-of-line valves for Fire Hydrants, and also the valves controlling water mains and feeder pipes, are kept from freezing [in northern climes] by placing the valve deep underground, below the freeze line. The familiar pentagonal head atop a fire hydrant connects by a long rod to the valve far underground. Even then, if a fire hydrant is used in very cold weather, it may freeze up entirely if not cleared of water after turning it off.
let the water flow through, but not out, them.
