Question: Is there an on-off switch?
Answer: No, but it does work when the sun is shining on it. It starts working better after a few days in the sun and some days it kept on working when it was cloudy!
Question: Mine started pumping as soon as I took it outside but it is intermittent. Anyone have that happen?
Answer: I bought 3. They all work great. At first, I thought I had 2 intermittent ones. Put unit 1 outside, no problems. I wanted to put the next one on the screen porch in my pet's bowl. Thought it was full sun. Units 2 and 3 were both intermittent in that spot. Moved them completely outside (no insect screen) and they both work like unit 1. Had to change the spray head on the first unit as it was so powerful it was sending the water up about 2 feet, and the wind was spilling the water out of the bowl. I will be buying more.
Super fast for Atlanta. 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. I highly recommend.
Anna- Atlanta, Georgia