Good question. The pond overflow leads into a stream with the bog at the end. The waterfall supply pump will be submerged at the bottom of the far end of the bog and will be routed up 6.5 ft. to the top of the falls, the output of which flows into the pond. Was thinking that with the falls, stream, bog, and a reasonably high flow of 6500 gph, that we may not need aeration???


KDO