Esshup,

Thank you, again! I believe the well casing is 6 or 8 diameter, the pipe to the pond is a 4 inch and 10 hp. Not sure who made the pump.

Is there a way to turn my gpm down I guess? I am new to all of this. Once we saw the iron, we changed the discharge to shoot into the air some, then have the water flow down a riprap ditch to attempt to rid some of the iron. I don't know that it has helped much and that's why I'm looking at a true filteration system.