Yes, you can absolutely use a sand filter with a saltwater pool, but you’ll have to make sure you have the right grade of sand to catch smaller particles, just like in a standard pool. To choose the right pool filter, consider the degree of filtration you’ll need. Cartridge or diatomaceous earth filters can remove smaller particles, so they’re better suited for a less chlorinated saltwater pool.

Off-season pool-building prices often align with the time of year you're least likely to use a pool. Many contractors offer deals in the late fall and winter to bolster the slow time of year. However, if you live in an area with freezing winters, you'll need to wait beyond the final frost and threats of extreme weather.

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.

No, stock tank pools do not get too hot, even when they are set up in a sunny location. Many stock pools are made with galvanized steel and are designed not to get too hot to touch. When your pool is full of water, it is less likely to get hot. The water might be warmer than it would be in an above-ground pool, but it will not be uncomfortable.

If you have kids and want to be extra cautious about the temperature of the stock tank, you may want to set up an umbrella for shade over the pool area.