Can filling pool from well affect hot water heater?

Yes, filling a pool from a well can affect the hot water heater. When a large amount of water is drawn from the well, it can cause the water pressure to drop. This can cause the hot water heater to cycle on and off more frequently, which can reduce its efficiency and lifespan. Additionally, if the well runs dry, the hot water heater could be damaged.

To avoid these problems, it is important to make sure that the hot water heater is properly sized for the home and that there is enough water in the well to fill the pool. It is also a good idea to turn off the hot water heater before starting to fill the pool. This will help to prevent the hot water heater from cycling on and off unnecessarily.