The Napoli Outdoor Wall Fountain

How often do you have to refill the 2 gallon of water?

Refilling the water will depend on how hot/sunny the area this fountain is in. There is no exact refill recommendation as evaporation may vary. The most important thing is to ensure that the pump is always fully submerged and does not run dry. 

Can the Napoli outdoor fountain stand upright on its base, if I don’t want to attach it to a wall but rather just set it on my deck?

This fountain is meant to be hung on a wall.

What is the water capacity of the fountain in gallons?

Approximately 2 gallons.

what is the weathered stone picture?

Weathered Bronze is the solid dark brown color.  Florentine Stone has lighter and darker browns in it and is varied.

Do you have to have a water hook-up for this fountain?

We do not have a water hook up for this particular fountain.

How does the variable speed pump work?

The variable speed pump allows you to adjust the water flow.

Can you hear the water? Or is it too small to hear a waterfall soothing effect..?

The fountain has a soft, trickling sound. It's not terribly loud, but certainly noticeable.