Building A Koi Pond With Concrete Block

Do not place your pond under trees that may shed leaves into the water.

Building a koi pond with concrete block.

Once the area is clean use a shovel or front end loader to dig out the pond giving the sides a slope of 45 degrees. For curved wall designs you can use concrete blocks as we do in our bubble less koi pond polyurea concrete or gunite can be used. With the pond box retaining walls completed you re now ready to place the hydroclean pond skimmer. Select a level location for your pond.

4 deep koi pond with 4 bottom drain 2 fiber reinforced concrete sprayed over 45mil epdm liner. The rebar was placed on top of rebar chairs rebar blocks could be used as well to keep the rods in the center of the concrete pad during the pour. The choice of this size of block may come as a surprise because we so often see ponds constructed using 9 hollow blocks backfilled with concrete and reinforced with steel rods. Concrete and mortar have been favored by pond and fountain builders since the roman empire and the formula has changed little in the past 2000 years.

To build a concrete pond start by outlining the pond with marking paint or rope and clear the area of any rocks or debris. Remove the sod if necessary from. By using the hydraulic rebar cutter the rods could be cut to specific lengths. Measure half of the diameter of your pond on a piece of garden twine and cut the twine to this distance.

As this pond was designed to be only 3ft 6 deep and to hold around 1 700 gallons of water the walls were constructed of 100mm dense concrete blocks on edge.