Hello from Central Ohio. I am in the planning stages of building my first Koi pond. I am a DIY guy all the way. At this point, I will have a header pond (approx. 5x6) filled with water celery used to filter the main pond. There will be approx. 2-3 foot water feature leading into a 12x10 pond. I am using an external pump connected to a skimmer and a bottom drain. Water will be drown from either source via Jandy Valve of some sort. I plan to have approx. 5-10 koi. No goldfish at this point. I heard that they multiply to quickly. I look forward to reading about things related to pond and DIY here on the forum.
Thanks
Don
Thanks
Don