Hi Simone,
Water dragon is going to be supportive if it passes your door in a good direction (right to left or left to right) which is related to your front door degree. First you would need to establish the supportive direction for your door.
If you want to place a fountain close to your front door, check your 20 year and annual star combination at this part of the house. As the fountain is in the etheric field of the house (however outside) it will still influence those stars. I would not place a fountain, if you have negative stars there.
Before you place a fountain in your garden/yard check the 20 year stars combinations for your landscape feng shui.
If you buy a fountain for outside do not buy one, where water flows out in all directions, like a ball. Go for a fountain with “directional” flow, even better if it has a basin that collects water. Position your fountain in such a way that water flows towards your front door.
Good luck,
Alexandra
