How To Build A Cheap Koi Pond

Wonderful Koi Colors

Imagine Your Koi Looking Like This

Koi Ponds have become the premier aquarium for many people around the world. These fish come in a huge variety of colors and patterns and there is a lot of pleasure and for some people, profit, in owning koi fish.

Koi fish ponds bring out the best in people. As a result of this, many people look at a pond and envision how it would look in their own backyard.  Koi ponds can be very expensive.  But, if they like and want to keep koi fish, they willingly take on the task of building a koi pond.

A lot of DIY koi pond builders are successful, but many soon realize that it takes a lot of expertise to successfully build and maintain a koi pond.   If you want a pond without the expense, ask the question “How can I save money”?     Yes, building a pond requires a lot time and money; however, if you are remotely handy with tools, a few simple suggestions should put you well on your way to owning your koi pond.

There is no reason to believe that an in-ground pond is absolutely necessary. Consider building an above ground pond the same way you would build a wading pool that was a couple of feet deep. The size of the pool determines how much it costs to build and how many fish it can support.  You may be able to save hundreds over the cost of a comparably sized kit.  Follow these steps:

1. Determine how much area you want to devote to your pool. A 10 feet by 12 feet pool that is two feet deep is a good size and makes the calculations easy. 10X12X2 = 240 cubic feet of pool. Multiply this by 7.5 gallons and you end up with an 1800 gallon above ground pool that will support five or six fish easily.  If you want to make the pond deeper, it can easily be done by digging a hole and make part of the pond be below ground level.

2. Build the pond structure out of 4X6 or 6X6 timbers. You may have to cut some of them to make the joints, but this will allow you to overlay the joints and give the structure added strength to contain the pressure of the water. Drill holes through the timbers about a foot into the ground to hold the structure in place. You can also drill holes for the skimmer and water lines.  Water lines and valves are ordinary PVC and are very reasonably priced.

3. Find a suitable place to put a utility area with the pump, filter and water purifying equipment. I would put it in an out of the way spot that can be covered with a shelter or hidden with plants. Run the water lines from the pond structure and electrical conduit to the utility area. Make sure you seal the flanges used with the lines and I suggest a valve installed in each line to isolate the pond when you want to do any maintenance on the utilities.

4. Install a liner. It has to be a heavy gauge plastic liner. This is one area I would not go cheap on. The heavier, the better and I suggest at least 1/2 inch of styrofoam or vermiculite under the floor and sides of the liner to cushion it against imperfections in the ground and the sides of the timbers.

The liner should be at least 45 mils thick and (if possible) cover the entire area inside your pool without any seams. Finding the right koi pond liner can be as easy as going to and selecting a liner with a warranty.

Another option is to buy a pond kit, but before you spend any money, find out what’s in the kit, compare prices and don’t spend any more than you have to get the right kit for your yard.

Finding the right koi pond kit that has everything in it you need to build a koi or garden pond could be as easy as heading down to your local hardware store or going online to do your shopping.

Go to the Amazon website and find out what a competitive price for a complete kit is from the largest online store.

5. Fill the pond with water to just above the flanges and check for water leaks in the plumbing. If you find any, pump the water out and fix them. Then continue filling until the water level is about six inches below the top of the structure.

6. Start pumping the water, use any dechlorination method you want and let the water circulate for several weeks to stabilize the temperature and quality before you put any fish into it.  This is also a good time to install plants in and around the pond to provide shade and food for your koi.

7.  Put your koi in the pond and enjoy.

8.  Start thinking about other things you can do.  This type of construction makes it easy to add waterfalls or fountains.  Let your imagination be your guide. 

Getting the best information is the first step toward having a great Koi fish pond and information is available now.  The The Beginner’s Guide to Raising Healthy Koi“ offers the latest up-to-date information on building your pond and keeping your fish healthy, vibrant and happy.  Get a copy by clicking here now.

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