Designed and build your own water garden Koi pond. I visited Japan a number of times and always admired their Koi and water gardens. Our Koi pond design has three ponds, the top pond has water hyacinths that float on the water and filters it, the water is very clear. Water falls from the top pond and aerates the water in the middle pond. The main pond is about 2000 gallons of water where the Koi and water lilies thrive.

It is very soothing and relaxing to sit beside the pond listening as the water tumbles down a small water fall. The dragon flies are darting in and around shrubs and plants, crickets are chirping, bees are buzzing and humming birds are flittering around. I can sit for hours in a lounge chair listening and watching this while the Koi swim lazily around in the pond.

We have about 6 water lily plants with large pink and red blossoms in the bottom water garden pond. They cover almost all the pond in the summer time but they die off back to their roots in the fall and re-grow in the spring as the days get warm and long.

I have about 40 Koi in the pond, it is hard to get an accurate count as they never stop swimming. I purchase small Koi, 2 to 3 inches long and place them in the pond. They will grow to over 10 inches long.

Egrets are the most frequent visitors to our pond. They will fly onto our roof or the neighbors roof then drop down onto our patio and wade into our pond. If we see the egret, we will let our dog chase them off. He hasn’t jumped into the pond since he was a pup.

We have also had raccoons play in the pond and try to catch the koi. We watched a mother and 3 baby racoons try to catch our Koi.

I used stakes and strings to outline the pond design for our do it yourself Koi pond. I placed 3″ PVC pipes from the pump in the lower pond to the top pond. I used an asphalt paste on the block wall before I piled dirt against it. I placed 4 railroad ties two layers high in an L shape to make the front edge of the upper pond and the back edge of the middle pond for the waterfall.

I made a 1/4 circle ridge with about an 8 foot radius from the ends of the ties to make a pie shaped middle pond where water would flow over this ridge into the bottom pond. I made the lower pond about 18″ deep and put most of the dirt into the retaining walls of the upper two ponds. I enclose all the ponds with a PVC liner that was cut and glued to fit.

I originally bought a 1/5 horse power above ground pump with a 2″ inlet and outlet. This pumped the right amount of water to get a good flow over the waterfall. The problem with it was that I had to keep priming the pump if the inlet pipe would suck air.

I finally found a submersible 1/3 horse power water pump that was OK to use in a Koi pond. Check the fine print, some pumps cannot be used in a fish pond. I found this out after about 6 months when I tried to get a replacement pump.

We’ve had this pond design for about 15 years. We have had good luck with this design and the raccoons and egrets like it too.