PlayWay Water for Unity!!
Its the newest one that has not make the store yet.
It includes fixes for AMD cards and various other things.
Since some of you don't know how to use a computer....
All you do is DRAAAGGGGGG the ENTIIIIREEEE FOOOOLLLLLLDEEEERRRRR
Into your "Assets" folder in your project.
Here is a super "stupid proof" example
c:/MyUnityProject/Assets/PlayWay Water System
If you can't figure this out, go outside.