Do not hesitate to attach the mobile part to a corner and fix the stone elsewhere where the air pipe tends to roll up on itself for a more beautiful effect. Starts with little light and light buzzing.

Good price/performance ratio. When exposed to direct sunlight, the air pump begins to pump air into the water via the aeration stone. When there is light cloud cover, the ventilation stops. The advantage of the device is that it is practically maintenance-free (no power cable, the ventilation stone has to be cleaned from time to time).

Easy to set up and is moving around pool and is adding extra oxygen.

The media could not be loaded.\n \n \n \n \n \n \n \n\n\n\n\n\n\n\n\n \n \n So, the description or instructions are very bad. I was lucky to find the right connection for the air hose. The device activates when the sun shines. There is no switch and no battery. At first it had very little power but something got it going, as you can see in the video.

I'm happy with it. Noise level low.

Assembly very relaxed, in the pond and it works. But since the hose and the air stone were too small for my pond, I replaced both. It's bubbling enough now. I am very pleased.

Bubbles up immediately when the sun shines! Perfect for small ponds.

Only works in direct sunlight.

The thing really needs to be in the blazing sun, then it works very well. I often have shade, but then of course it doesn't work!