We have rain coming over the next week, hopefully enough to finish filling it and then we will get to see if our spillway will keep it drained down from filling over the dock. We aren't sure and it looks like it's going to be close. Before the redo, it would keep it just a couple of inches below the dock. It was perfect.
If the "new" water level turns out to be not quite perfect, you could still install an automatic siphon system. That would allow you to readily adjust the water level to perfect. Or even allow you to pull down the pond if that would help you in some future pond management project.
Good luck on your big project and getting your "new" pond in the optimal state for your family's use!
