OK thanks guys My neighbors pond does not flow into mine in any way. Only connection would be source of underground water above us when water table gets high enough. Watershed is separated by valley which meets below ,no way for fish to get back to me. Mine plan is to put a drop box type drain then pipe thru bottom of damn rather than the pipe near top. No standing water yet, but alot of mud lately. Can't start till it dries up somewhat. After all that dry spell ,my luck.
