Hydrants Get Flushed Sponsored by: By Bill Johnson Published Dec 4, 2003 10:30 am Updated Jan 31, 2009 04:55 pm Firefighters in Twain Harte will be flowing fire hydrants this afternoon. From now until about 1 o´clock fire crews will be in the areas of Sierra Pines, Spruce, Tamarack and Highland doing the work.