Considering the price we must not expect a pump XXL. However it works great in the sun and even partial shade in a small pond. So that the jet is high it is necessary that the nozzle or at the level of the water and not underwater. It is true that I have put it on a support for the nozzle reaches the water level height 10 cm was well displayed and my pelvis is 17 cm deep so I increased the pump 7 cm. The jet can go very high and there is a little wind to empty the basin in one afternoon, that's what just happened to me so I just dived under the water nozzle to prevent second drain. Anyway I expected what I ordered and I think some reviews are a bit hard for a pump 9, 60 I'm not disappointed and I recommend this very nice little pump. And not have to read the instructions to install it, it's so easy. It remains for me to read the cover with small pebbles to not see the label.