Correct, I do not have any type of aerator/diffuser in the pond as I still don't have electricity there, but after seeing and smelling what I did today as soon as I get power out there I'm gonna seriously be looking into a system if it will prevent that kind of water from being in my pond. Thanks
Just remember not to crank it up full blast right away during the summer or you will be bringing up all that anerobic water and potentially causing a fish kill.