Wait until the ice on the pool cover melts, then use a pump to remove water from the cover. Do not attempt to remove ice from the cover as the ice's edges could tear the cover.
Prevent ice build-up by maintaining an even water level on top of the cover. Keeping at least one inch of water on the cover will prevent it from blowing away. Too much water on the cover may stretch the liner.
Remove snow gently from the pool cover with a pool brush.
Place an air pillow under the cover of an above-ground pool so that water will run off and not freeze.