I recently moved into a house that came with a fish pond. I was initially thrilled to have it, but now I find the maintenance a little overwhelming. I’m specifically having problems with water evaporation. I have a 10,000 gallon pond with two waterfalls that run continuously. I filled the pond in the summer for about 20 minutes a day, and that seemed to keep the water levels in check. However, since the winter started the water evaporation is almost alarming. NO matter how much water I put in, the water level never seems to be high enough. I was convinced I had a leak, but when I left the water running continually, it flooded my backyard. Often my garden hose freezes, and then I have to drag my garage hose to the backyard. I’m worried about my eleven beautiful fish, and frustrated by the evaporation. Any thoughts would be greatly appreciated.