Refraction width depth fade

Hi,

I am having a problem with my water material.
It is working fine so far and there is a really nice ripple effect with the refraction (See image1, pointer 1).
Unfortunately, the depth-fade effect does not consider the refraction. That leads to the effect in image 1, pointer 2.

Is there a way to handle this problem?
You find my material (the important parts) is in figure 2

Best regards
Christian