How To Build A Koi Pond Step By Step. You are essentially done at this point, but you should still wait for a few weeks before adding koi fishes to the pond. Keep the koi in the water and in the plastic bag that they were purchased in.
Place a bucket below the overflow pipe. Before getting to the actual building of the pond, it is essential that you first put your ideas down on paper. This lets you create your dream koi pond, it will also mean you can calculate the amount of materials you will need for the specific dimensions and layout of the pond.
Use string and sticks to lay out the perimeter of your pond and to give you a pattern for digging your hole.
Look for an area with either part sun or full sun if you are planning to keep fish and/or plants. Building a koi pond can be the most rewarding diy pond construction project you ever tackle. You get to see the flow rate which allows you to easily make an estimate on the duration it would take to have a 5% water change. Add the koi once the water temperature is adequate, usually after a few days, you can proceed to add the koi and plants.