Shawn, I think you misunderstood the point what I was making with regards to chemicals and hay. I do not use the pond at all for the fields or animals. I was trying to say some of the hold times to pasture, on the chemicals that are used in the forage grass for animals are extremely long. I was using that as a comparison, realizing all chemicals are different, to the length of time the chemicals, or their residue, would be around in the pond. This may be the wrong way to look at it, I do not know, that is why I am on this forum. I am trying to make the correct decision, so ultimately I do not have a weed pond.

Thanks
Ron