Setting up a pool on unlevel ground is not recommended as it can damage the pool or yard and put the safety of those using it at risk. If a pool isn't level, the water's weight won't distribute evenly, putting excessive pressure on certain parts. This can cause the pool liner to tear or the walls to collapse, leading to water damage, expensive repairs, or potential injury to swimmers. It is more cost-effective to level the ground correctly before installation rather than waiting to address serious structural issues later.

While some commercial pools are required to run their pump 24 hours a day, homeowners should not. Running a pool pump for 24 hours a day isn’t necessary to clean the pool water—eight hours is enough. Doing so unnecessarily increases your electric bill and puts more wear and tear on the pump and filter, shortening their lifespan.

Generally, you do not need to drain your pool to convert it to a saltwater system. The main exception is if you have used an antibacterial agent containing polyhexamethylene biguanide to sanitize your pool, as these sanitation products do not mix well with saltwater systems. If this is the case, you will need to start fresh. You can either drain the pool or treat the existing water with a high dose of chlorine to remove the antibacterial agent. If you choose the chlorine treatment, wait several days to allow the chlorine to work before proceeding with the conversion. If you are unsure whether this applies to your pool, consult a pool technician.

You can usually use the water from your tap to refill your pool, whether it's city water or well water. If you're going to use well water to fill your pool, make sure you have an adequate amount of water available and that the water is free of contaminants. A water delivery service may also be able to bring water to refill your pool.