I would want to know the PH range.
I use both, gypsum as a flocking agent and ag lime for low PH. If it's a clay pond, it probably needs lime.
The pelletized gypsum has a brown tint to it.
Yes, it was the pelletized gypsum that I used for the test. Do you think that is the cause of the current brown water (despite the water being brown to begin with)?
PH was pretty low -- mid 5's best I can tell with my pool testing chemicals.
And the ground is 2-3' of peat, underneath is clay for quite a bit, then a mix of gravel/clay/sand. It's one big watertight soup bowl.
Would love to hear expert's suggestions on how to clear it.
Thanks!