Great, thanks. If it is suspended clay, does it make sense that the water is just staying this light brown for a long period of time since spring; basically unchanged? Uneducated guess is that it'd settle out but nothing seems to be changing. It was clearer after winter along the edges but that's gone now.
Suspended clay can stay suspended indefinitely in the right conditions.
(I speak from experience)
I used a heavy dose of ag lime to bring the water chemistry to a condition that did not favor clay suspension, then nailed it with gypsum.
Huge difference.
If your pond is clay, you need lime.
It's $60 a ton in my area. Cheap enough, but slow acting.
