I have a friend here in town that had a pond built by some professionals (I was going to build it but I backed out). This guy has a real koi pond (with 2 nexus) powered by Sequence pumps. Then also a goldfish pond, powered by 2 Wave pumps.
One of the Wave pumps is sucking air. I told him about the problems other people have been having.
I hope he gets it replaced.
edited to say "I hope he gets it figured out". Sorry, I made an assumption.
