Prevailing winds would push it to the same spot over and over, it wouldn't really be a floating device that covers the whole pool, rather, it would just sit, blown against the wall somewhere and act similar to a wall skimmer, until you get sick of getting tangled up in the hoses, then it would probably just sit in the shed or end up in the garbage. You can make something like this using a tupperware container, a cheap vac hose, some pool floaties and some weight to balance it properly - probably about 10-20 bucks if you buy the high teck stuff, definitely NOT worth 300.00!