POND SCUM ! How we kill it here on the PFON  

Hey PFON! That worked fast. Well done. It's raining here today.

Man, that stuff works quick, Phil!

I think you’re on the right track with pouring a small wall/Dam. Maybe put some 6 Mil plastic down on the bottom and up the dirt side of the wall. Put in a couple pieces of rebar for good measure. Looking good Phil. 😎👍🏼