Pond Boss Forums AERATION Systems questions Water clarity around diffuser boil

Diffusers should be built / constructed so they decend in an upright position. If not make changes in the design or frame assembly. Diffusers should have a low center of gravity to minimize tipping and a wide base. Weighted airline can cause a "pull" on the diffuser as it decends. Maybe try lowering the diffuser with it operating. Airflow may help hold it upright.

If you are sure the diffusers are upright AND the diffusers have not settled into a deep muck layer of an aged pond, then this is a possible explanation. Deeper diffusers that have a discolored boil could be lifting settled materials and or detritus to the surface from the deep water layer or zone. Normally the layer does not contail lots of stuff until later in the summer. The top productive layer generates organic materials that settles or "rains out" into the deeper waters. As this dead material settles it can collect in the cooler deeper layers as a band of dead "junk" that does not settle out at a normal rate due to differences in water temperature and water density. You may be seeing the layer of "junk" being brought to the surface again.

If this is an old pond then I think the diffusers are siting in deep muck. If it is a new pond (1 to 6 yrs old) then I am concerned that the diffusers may be tipped or not lying flat on the bottom.