I built this stand out of 1/2" PVC pipe to hold the bubbler up off of the pond bottom. I set it in ~14' full-pool depth. I tied a jug to it with a poly rope so it can be easily retrieved for cleaning or repair.
8/10/2019
So far it's working great. It makes a huge boil and doesn't stir up any mud when the air is running.
I bought a RubberMaid tote to keep the pump dry until I can finish the shed around it. It's a bit of a nuisance dealing with the lid, but it's just a temporary thing so I can live with it.