We also have a mesh cover without a cover underneath because we are not able to use a regular cover, but needed some way to keep stuff (including my ornery cats!!!!) out of the pool. We just used washers and screws to screw it to the deck on 1/2 the pool, and the other half, we put tent stakes into the ground and threaded the cable through and hooked it to the tent stakes. I can try to get pictures if you want to see how ours looks.
Ours hangs in the water too - but that made it SOOOO easy to get the leaves off - just took my long handled leaf skimmer and ran it along the top - and pulled up the leaves. My water was still crystal clear when it froze to ice. I'm so excited about that!
Now - since the pool is ice, the cover is froze to it - it's actually not in the water though - it's on top with just a bit froze to the pool - it was like it got pushed up as the water was freezing - because it was actually IN the water when it started to freeze!! I was a bit concerned about it, but it seems to be fine so far. I may change that opinion when the blizzards start though! Sometime when we get a bit of a thaw, and it unfreezes, I may try to get it higher so it's off the water/ice until spring.
The directions said that if it doesn't fall straight down along the edges, but sloped out, the mesh cover could be damaged. We could only get one side to fall like that, so I'm just hoping it isn't damaged. But if it is, so be it. I'm still very happy with it, and I'll just buy another one for next winter and try again!! lol We can't figure out how it will be damaged because the wind isn't taking it (it just goes through it), so that shouldn't be the problem. Unless my 16 lb cat will tear it when he walks on it!
OP: I just noticed that you have the same pump and filter that we have. Why are you replacing your pump? Just curious...