In our web site (FAQ Section), we explain the size of debris that SkimmerMotion™ can handle, this is an extraction of our web page:
Will my SkimmerMotion™ pick up all kinds of debris?
SkimmerMotion™ was designed to eliminate those hard to clean debris floating on your pool's surface such as: bugs, dust, spiders, pollen, whitefly and other smaller particles straight to your pool's filtration system. All this debris negatively impacts the clearness of your water therefore, you will notice in a couple of days your pool will look crystal clear after using SkimmerMotion™. Leaves and flowers smaller than 4/5" (0.8 in. / ±20mm.) will be absorbed and "filed" into your SkimmerMotion's Basket System. The Basket should be cleaned periodically (when full). Bigger debris such as Maple Leaves, Oak Leaves, etc. unfortunately will not be removed by SkimmerMotion™.
If you have medium size leaves that manage to pass though the Central Crown, we can send you FREE OF CHARGE a Crown O-RING that will stop the bigger leaves from getting into the hose and block the system. Just reply to this email with your Name, Address, requesting the SkimmerMotion™ Crown O-Ring.
SkimmerMotion will not work with BIG LEAVES, It will eliminate all small leaves, bugs, White-Fly, dust and all kind of small debris floating in our pool.
HERE SOME EXAMPLES OF BIG LEAVES.