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How to build a concrete pool
Mark out and excavate the area of the yard to install the concrete pool.
The hole should be dug approximately 9 to 12 inches (23 to 31 cm) deeper than you want the depth of your pool, to allow room for surfacing the bottom of the basin. A lip is also left around the perimeter of the hole to accommodate sufficient working room for placing forms.
Install plumbing, using pvc pipe and strong bonding material. Your plumbing should include a drain at the bottom of the pool as well as the necessary structure to ensure safe water flow throughout the pool.