My BOW has a standpipe system, 9 5/8 inches, that takes water off the bottom near the dam (about 25 feet deep). Most of the year the water runs out the pipe 5 - 15 gallons a minute due to a couple of small creeks, though during prolonged dry spells the flow stops (creeks still flow a little, but not enough to keep up with evaporation).
During large rain events, such as we've had the last week, water gushes out the pipe. Fortunately, only once did the emergency spillway come in use a couple of years ago.
Here's my question: To what extent does taking water from the low DO bottom layer help protect against fish kills? Does it make any difference at all? I know it's better to keep high O2 & fertile top water in general, but never heard any discussion about relationship to turnovers & fish kills.
Any thoughts?
Last edited by anthropic; 06/04/17 02:11 AM.
