Water Gardening: Do you have or recommend a BOTTOM DRAIN in your pond?, 1 by dbsmith2

dbsmith2 wrote:
I have a large pond with 4 bottom drains. I bought almost all my equipment from macarthur water gardens, and they were very helpful in the planning stage. The link:http://www.macarthurwatergardens.com/
We also built a shed to hide the filtration equipment, but it is located inside. I have 2 1/3 and 1 1/4 horse pumps and a medusa filter. I use hydrogen peroxide to control algae - found that on a thread here. The only thing I would have done differently, and will be doing this year, is adding a large air pump for the winter. I lost all my koi and the thought is that they somehow lacked oxygen - either from decaying leaves or a turning of the water.
Here's the shed: