The solar cover is attached to the reel with straps and you roll it onto the reel when you want to use the pool.
How to use solar pool cover reel.
Above ground pool solar blanket reel check another info.
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From there your job is pretty much done.
So with that said grab a pair of scissors and shape the cover to fit snuggle atop the surface of your water.
Reels make pulling the cover back onto the pool after use an easy task as well.
Use a solar cover reel to reel up and store your cover when not in use.
For rectangle covers the straps can attach on the end but for round or oval covers the reel is positioned over the widest part of the pool and the clips pinch the cover folding it over across the pool a small fold only about 1 or enough to attach the clips to the cover material.
As you apply the cover make sure the bubbled side is facing the water the plastic air bubbles are what keep the cover afloat.
This will keep it from being needlessly tugged drug and folded.