It takes it a while to go dry. Right now it has about 10-12 feet of water in it and it will take months for all of it to run out/evaporate. I lost a lot of fish when I first bought the place and did not know the pond was leaking. My wife is starting to get pissed off about this pond and reminds all the time about the fish I bought for the raccoons to eat when the pond dried up.