If you're that full, your skimming action won't work well, but you really don't need to drain, I live in the country, we're on a well, so I hold on to every raindrop I can get into the pool - this summer, it was very dry at first, I had to order a water truck once, of course, since then it's rained frequently, and when it does, my pool instantly overflows.
For the last month, I haven't been any lower than 1/4 down from the top of the skimmer. I use the leaf net to eliminate the few bugs etc that get in when the solar cover is off.