Building A Koi Pond With Concrete Block

With the pond box retaining walls completed you re now ready to place the hydroclean pond skimmer.

Building a koi pond with concrete block.

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. During the pour the footers were poured first then the slab of the pond. To build a concrete pond start by outlining the pond with marking paint or rope and clear the area of any rocks or debris. 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.

Select a level location for your pond. 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. 3 size rebar 375 was used in the slab. Do not place your pond under trees that may shed leaves into the water.

4 deep koi pond with 4 bottom drain 2 fiber reinforced concrete sprayed over 45mil epdm liner. How to build ponds with concrete blocks 1. Measure half of the diameter of your pond on a piece of garden twine and cut the twine to this distance. 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.

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.