Yes, mine fluctuates with the water table. We've had a fair amount of rain the last couple of weeks and the exposed edges of the pond are weeping quite a bit. We also have saturated ground in one area so the runoff is also filling the pond. All in all it's gone up 12-14 inches in the last couple of weeks which makes the fry happy as they now have some plants to hide in.
I've seen other posts about using well water to keep a pond full but it can take quite a bit of flow depending on the exact circumstances - meaning pond size and amount of water loss to be made up. I think the pone post I saw said they used 35 GPM to maintain the level.
