Twelfth working day

In a heated pool it is essential to the climate of this because if not, do not call it that. The air conditioning process, is that the water is at room temperature, and in the case of an indoor pool, water and air shall be kept on the same temperature.
To make this process required a lot of energy therefore in most cases other energy sources such as solar, hydro, tidal .... that depend on source were used geographic location in which you are the pool.