Yeah that's the place. DOH! Mine is still running just great, every once in awhile I will pull it up and clean the diffuser surface with a tooth brush to get the growth off of it.
I really regret not getting the weighted line, for 1) it is always figuring how to float up and 2) I know that I am going to have to limit the area so no hooks get into since it isnt laying on the bottom of the pond but weighted in several locations.
And just the other day I sprung a leak, nice little hole punched into the top of it. Not sure what did it but with the heron hanging around as much as he has I am thinking he may have caught a glimpse of it and thought it was a snake or frog or something and drilled it. I would like to discourage him for ever!
