Aloha! I have a pond/waterfall in my backyard. There is a small leak that we haven’t been able to fix since the previous owner lined the pond with boulders that would take a crane to move. The water level stops at a level where we can still have water flow into the pump box opening. I lowered the pump box opening just below the level that the water stops and water flows into the box, but the flow isn’t enough to keep up with the pump. The pond is pretty big and I wonder if I fill in the pond, will that increase the flow of water into the box? What would best to fill the pond with? Any thoughts that might help increase water flow into the box would be great. Thank you!