How much water evaporates from the pool?

This depends on many factors.

This depends on many factors.

This depends on many factors.

nearly none but most of the water might freeze.

If you wait long enough, all of it!

It depends on the surface size, temperature of the water and outside air temperature, the activity in the water, if there are any water features in the pool etc.

You need to replace the water that evaporates.

This depends on the surface area of the pool but generally speaking on a really hot day with a pool that is heated to 85F you can loose up to 1/4 inch of water a day.

Yes, clean water is evaporated faster.

This depends on the solute in water.

Eventually, all of it if not replenished. The rate of evaporation depends on local climatic conditions.

Water evaporates. The hotter the surface temperature is, the faster the evaporation rate it. Even during the summer, the water evaporates at night.

Salt water is evaporated slowest.

How geysers work is there is a pool of water right above a thinner-than-normal spot in the Earth's crust. The pressure is building up in the pool, until the pressure is too much. The water then shoots out of a hole at the top of the pool. The water then splashes down or evaporates. Then, the process repeats itself.

Sodium chloride is formed.