Great for smaller pools

I was hesitant to buy this at first, mostly over the fact that it was around $13 and really just appears to be a sponge, however, after trying it I am actually very happy. Our small intext pool had quite a bit of oil residue from sunscreen and tanning lotions that I couldn't get under coNTROL. After 48 hours of the scum bug in the pool, its gone. Highly recommend giving this thing a try!