How To Build A Koi Pond With Concrete. If rubber liner is used, the liner is installed, and the pond is filled with water to within 1 inch of the top edge. The second method dispenses with the cost and additional labor of integral concrete waterproofing by applying a waterproofing coating on the inner surfaces of the pond after the shell is constructed, and it works with either poured shells or with cinder block construction.
Start out by creating a rough drawing of the pond and where you want the filtration system to be located. This was the ground area that sited my project, unused garden space that was in an ideal situation for the fish pond. Carry concrete into the pond with buckets and spread it out, working your way from the bottom to the top, if it is too deep to cover the whole sides with a rake or broom.
They may have built a pond that turned out very successful but unless you build a pond exactly the same size and shape, what worked for them may not work for you.
Incorporate heating for temperature control and 5. They may have built a pond that turned out very successful but unless you build a pond exactly the same size and shape, what worked for them may not work for you. After 2 weeks, drain and refill again. The rubber liner creates a very soft surface for the koi but even when a liner pond is installed properly you will have a number of minor folds in the liner surface.