So the pond still isn't full. I don't think it's leaking, but when i stopped the water the water level dropped 3" in 2 days. It looks like it is soaking into the dirt around the pond as the wet line is 6" above the high water mark. I am hoping that this is just the pond wicking and not a leak. There are no wet spots downhill from the pond.
I hooked the pump back up to my solar panel and will run it for a few more days to see if I can get it full.
It doesn't help that we have had almost no rain. My two other ponds are the lowest I have ever seen them. Today we got a thunderstorm but within 10 minutes of passing the ground was dry. We need a good all day soaking rain.