We live in a sandy area and I suspect the pond may have a leak because the water goes down about a foot in summer. So I pumped a lot (about 100,000 gals.) into it from the stream near it to keep it up higher. I believe this pond holds between 400,000 and 500,000 gals. of water. It could be evaporation also? That was a lot of water to pump. The creek goes through peoples yards and I realized it probably had phosphorus in it. Pond is looking better now with addition of pond bacteria and some salt. Could be that it is correcting itself. The pump I used was a gas water pump 2" putting out about 130 gals. a minute if I read the pump booklet right. Thanks for your inquiry.
