Review on 🌊 SUN JVP Series Submersible Circulation Power Head Pump - 530 GPH, 2 Piece by Amy Jackson

If you're just going to plug these Wave Generators directly into a wall outlet they MUST be ok, but I can't guarantee that. I bought two of these pumps and I liked them so much that I bought two more. The plan was always to hook them up to a controller so I could have variable flow in my tank. At first everything seemed fine, but one of the pumps was much louder than the other. At first I thought there was dirt in there, so I pulled the pump out to inspect. Then I found that the fan was gnawing at the plastic on the front of the pump. Then I noticed that it was noisy because the fan was moving in the wrong direction and was catching on the teeth of the pump's plastic housing. I then blamed the controller for this as I was able to plug the wave generator straight into the outlet and it worked. A few days later I changed one of the pumps as I had four thinking I might be able to fix the problem. The problem is that one of the pumps is flowing in the right direction. But after fiddling with all four pumps and plugging them straight into the outlet and into the controller, it became clear that the problem was with the pumps as the problem was going to occur anyway. So now I have to remove my review of the controller as I originally blamed them when it was definitely an issue with the pumps.