Research local laws and codes to be certain your plans are in compliance and to apply for any required permits. Also make sure you contact your utility providers to have them come out and locate any buried lines before you start to dig.
Select a swimming pool kit. Although you can construct a pool without the help of a kit, if you are installing an inground pool for the first time you may wish to purchase a kit that comes with most of the materials you will need. Check with local pool supply companies, hardware stores or online pool companies when selecting your kit.
Excavate the area where you intend to install the inground pool. For a large and/or deep pool, you may wish to sub-contract this portion of the installation. For a smaller pool that is not deep, you can excavate yourself by hand or by renting a skid loader from a local hardware store or equipment rental company.
Install the pool walls. Your kit will come with pre-fabricated walls that are already assembled to create the walls of your pool. Wall braces are used to connect two panels. The walls braces will need to be set in concrete to make sure they are stable and sturdy.
Lay the plumbing needed to connect the pool to the pump, inlets, skimmer and automatic cleaner. The PVC pipe needed to complete the plumbing can be purchased at a local hardware store. As with the excavating, you may be able to install the plumbing on your own or may hire a plumber.
Create the pool floor. A combination of sand, Portland cement and vermiculite will be used in proportions that will depend on what type of climate in which you liven. The floor is created using a hand trowel just as most concrete floors are created.
Allow the floor to dry and then install the swimming pool liner. Use a shop vacuum to help get all the air out from under the liner.
Backfill the area around the pool and create a deck or complete any other landscaping you wish before adding water to the pool.