Cecil, hope your trout problem is only temporary, I guess it would be hard to filter the iron out with the amount of water you are pumping.
Never a dull moment.
Yes 41 to 45 gpms would be difficult to filter. I could run it through some filter mesh or a sand filter but it would clog in no time. At least that is what I was told by some experts.
The easiest way would be to run it into another pond and get it to settle first, however, that won't work in summer as by the time the iron settled the water would be too warm.
What's interesting it the iron level in the pond drops to only 0.4 mg/l later in the spring to summer even though inflowing iron level is about 2.4. Not sure why that is, but my guess is the iron settles better and more quickly in warmer less dense water or iron bacteria eats it up? Not sure just a guess. By that time the Chara takes hold so I'm wondering if that is a factor. Chara being an algae uses the iron?
