Easy to use, Place the Tree Fountain by the side or rear of the Christmas Tree and place the end of the hose in the bottom of the tree stand, Then take any empty 2 liter soda pop bottle fill it with water and invert it in the Tree Fountain, The water will automatically flow from the Tree Fountain into the Christmas tree stand until the water in the tree stand is 2"" deep, Then the flow of water will automatically shut off, When the tree drinks the water in the stand down the Tree Fountain will automatically refill it back up to the 2"" level, Quick and easy set up, Uses any 2-liter size soda bottle, Fills and shuts off automatically, Easy to check the water supply at a glance, SKU: MLR028