I used this on my Intex 14'x42" round pool. Very effective. I did however have to plug up one of the two outlet ports to make sure there was enough suction. I'm using the Intex 1600gph pump, so even with the upgraded pump I still had to plug one outlet port. Not a problem though. The skimmer catches everything on top. I would very much recommend to everyone. For the price and efficiency.