Moving the diffusers up & down after turnover is not an option. I guess every pond has some state of decomposition so an eggy gas would be present right? I have a nieghbor who is saying the egg smell means the water quality is bad, I was thinking it's natural because there is always a state of decomposition in the bottom of the pond, and the diffusers are doing good by releasing the gas so they dont build up. any input?
