Super fast for france. Despite corona-virus containment. I added an anchor with nuts and a wire attached below. The pump floats and tends to move on the edges, the water springs and the level drops. Thanks to this anchor the pump remains in the center. I use the adapter that has the lowest height so that the water does not. The jet has a height of 30 to 50cm. As soon as we pass in front or there is little sun, the pump stops. I'm very happy and my wife is asleep. I highly recommend.