Post construction water feature

I wish I would have included some water feature in our pool, but I did not. I have found 2 Polaris products which just attach to a return line. Does anyone have any experience with theses products. The Water Stars, floats where you put in with a weight, which seems to me to be annoying trying to swim around it... but the Water Stars wall, attaches directly to a return line, and creates a water fall at the wall.... ok won't the water go out of your pool? I can't get a visual on this concept. Any thoughts?

I have a floating 3 tier fountain that I used to use in my portable hot tub. It is similar to the Polaris one. I've hooked it up in my pool but you are right...the tubing and the weight can get in the way. More for show when you are not in the pool. they are pretty easy to put in once they are adjusted. I have seen the one that attaches to the return line. It looks like it is adjustable so it sprays into the pool and not on the deck...sort of like deck jets.