I second the notion of using a water crane (which I think is just a spout that sprouts out of the ground). It represents an underground connection to your water tank, doesn't take up as much room as a second water tank, and looks more realistic than a second spout on the same water tank. MTH used to sell them as an accessory for about $20, and real railroads normally used them in multi-track locations like entering or leaving a roundhouse. Plus, you don't have to worry about "location" issues like you would with a two-spout tank.
Chuck
