Thanks Bill and snrub, I had an expert size my diffuser and setup (Sue Cruz, I hope she is still in business and helping pond boss members as she has been quiet on the forums for a while).
I think for me the first priority for better 'plume' is to keep the pond at full pool. There is a noticeable difference in plume performance if the pond is down even a foot. The other thing is to get in there and clean the diffuser head more than once in the spring. The suspended clay and whatever else forms a tight skin on that diffuser gets pretty thick pretty fast. I find it easier to pull the diffuser up while it is on (easier to find it in the middle of the pond too
When I gently rub with my finger pads (not nails) while the diffuser is flexed and domed up with air it tends to dislodge eaiser and the air bubbles and repeated dunking and rubbing cleans it up in a hurry.
