How to Install a Concrete Koi Pond | eHow

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Building a concrete koi pond is a large undertaking that is usually expensive and permanent. It's a job best suited for a hobbyist who understands the needs of koi. Still, many consult with a professional contractor or hire help for some parts of the construction process.

Mark the pond in your yard using string or paint. Include where your filtering equipment will be.

Excavate the area where you will build your pond. If you wish to build an above ground pond, this will be less tedious, but you should still make sure the ground is level.

Place your bottom drains and piping in the bottom of your pond. Many pond experts recommend using a bend connector rather than an elbow connector to connect pipes. This will be less restricting for the water flow.

Put reinforcing bars in the bottom of your pond using bricks to hold the rebar up and in place.

Prepare and pour concrete into the bottom of your pond slowly and evenly. The concrete should be leveled off at a depth of about 6 inches.

Build the walls of your pond using small, solid concrete blocks or large hollow blocks and mortar. Large hollow blocks should be filled with concrete when the walls are complete.

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How to Install a Concrete Koi Pond | eHow