Where is all my pond water going? Long Valley- Morris County NJ
Are my fish drinking the pond water? Often, people do not realize how much water can evaporate from a pond during the dog days of summer. The Eastern states typically lose 1 to 3" of water each week.
Pond owners in the hot, arid Southwest have reported evaporation levels in excess of 3" a week.
Remember, these are averages. Some ponds may not experience evaporation levels this high. Other ponds with large pumps pushing high volumes of water, or ponds designed with multiple waterfalls and a lot of cascades and splashing may have evaporation rates much greater than these.