Fragment of unfinished work.
I thought of putting an additional transparent layer with active water under the layer of water.
So far, what better way I have not found. If someone came up with a more interesting way to share please.
Hey jack_tsaidesign , welcome to our forum and thanks for your inquiry. 
There is an existing feature request on our agenda tallowing you to have vertical water, for waterfalls as an example, so I've happily given the topic a further upvote through your voice. 
There is currently no solution I'm aware of to create a realistic looking waterfall, but you may wanna check out the last post from THIAGO here. In case this would be suitable for you, I'd suggest you send him a PM so that he can re-upload or send you the project.
... even though I am far away to help in any way - Compliment for what you show already now - everything, your water, this stone slabs, this scene are wonderful!
I would also like to add my voice to that request. To be able to do some waterfalls would be nice. I imagine the only way to do it now is to bring a render into photo shop? Please move this request up the list.
Davegx1 , thanks a lot for your feedback, your voice has been added in form of another upvote to the corresponding topic. Further, as mentioned in my reply above, you may want to check out what THIAGO achieved in his project, maybe this might be of interest. But, there is generally no direct way to apply vertical water in your project currently.
... even though I am far away to help in any way - Compliment for what you show already now - everything, your water, this stone slabs, this scene are wonderful!
yes, it's depressing, people showing unfinished work, i can only dream of.
yes, it's depressing, people showing unfinished work, i can only dream of.
so it is 
