When it comes to doing a proper maintenance for your pool, removing the debris afloat is crucial. The thing is that most of the debris will drown pretty quick (hence, making it harder to get to the bottom of removing it, pun intended). But, importantly not all of it will do so. Some mid to lightweight kinds of a debris or residue, like leaves, dust, and stuff is poised to float at the surface for a few days at least, providing you with a convenient timing for capturing it and removing it from your pool...