Hey FG Design,
So I have found the easiest way to create some simple water is to use simple constants combined with some moving normals. See the below example images from a Water Material I just created for reference.
Water Shader Example
Water Surface Example
As you can see within my material set up, I have established parameters for all of the values I will want to modify to get the right look and feel. I suggest you do the same, as this makes it easier to tweak the look to your desired water type.
You will notice I am also just using a simple constant vector for the my ‘Refraction’ input, and it works pretty well. Sometimes the simpler the better. Let me know if you have other questions.
Cheers,