To me it seems like you need to get a handle on the volume you are dealing with. A 1/10 acre pond is 32,600 gallons per foot of water depth. Depending on the average depth it may not be that much water. You could pump it to its natural overflow as suggested by Bob. If for some reason that doesn’t work you have plenty of area to distribute it over depending on the volume of water. Also, if you drain the pond it will be a while, depending on rainfall before you are full again.
