Everything we have done and tested was with solar powered systems with no batteries.
Notice the picture below shows the system right after it was installed. The picture in the previous post show it after a couple of days and "froze" into position.
The system pictured in the previous post and this post, uses both bottom diffusion along with forced air. The diffuser moves water up the water column (like a traditional system) into the "hatch". While that is happening an air blower pushes air into the hatch across the open water. Inside the hatch is where the O2 infusion and pond gases exchange is happening. The system maintains open water 24/7 with runs times of 3-4 hrs/day on average. The cover of the system which is not shown in the pictures below (the hatch cover) contains the inline blower. If you look at the photo in the previous post, you can see the ports labeled. The inline blower is pumping ambient air across the water. It would be comparable to a 20-25mph wind across an open body of water.
