I've only been using Blender for a few months, and the fluid simulation for only a few days.
I've made a bit of progress in creating a video of a swimming pool with a pipe supplying water. This is the insirpation:
I've struggled with tutorials as they are usually showing a faucet or tap filling an empty bowl. To get around this, I've created a very shallow block only a few inches deep and set it up as a fluid and inflow, fitting within the domain. I created a bent pipe, and inside inserted a small cube that supplies the water and also set it up as a fluid, and inflow.
Overall the performance is more or less what I'm looking for, but I can't get the flow to be refined enough. No matter the size of the little cube inside the pipe, the water flowing out is just too large of a volume, and thus I have to create a gigantic, and less elegant looking pipe. Note the image attached was when I set up the pool to fill all the way up from the bottom and it created weird dark splotches on a diagonal axis from the pipe to the lower right. I ran that simulation at a resolution of 128.
Assuming that I needed to I needed more detail I pumped things up to 256. It was a tiny bit better, but still not what I was looking for. I added bubbles etc... and some fog to make it feel like a mineral pool on a cold day.
At 256 I notice the flow isn't as smooth. It's a bit delayed coming out of the pipe (takes about 50 frames to come out) and at 512 it randomly spits out water and spray over a 250 frame range. Its like a pipe that's actually got some serious plumbing issues and doesn't flow consistently. I also find that running the resolution at 512 creates more of an orange peel like effect on the water. Note in the picture immediately after, it's a few frames after and only comes out as a spray.
Long story short, I can't refine the flow to the dimension I'd like, and adding more detail seems to make the flow a bit more erratic. I find 256 seems to be the sweet spot, I'd like to create something where the water flows out of a 2" pipe and not 8".