Here are pic’s of my branchline water tank. The water tank is located at the sumit of Wye Jct (see layout web link ) to supply “thirsty” steamers with fresh water. The tank (Evergreen Hills Design) was weathered using an alcohol and ink wash. The model was detailed using (Grandt Line) nut/bolt castings.
http://americanaceracing.com/ModelRailroad/