can anybody help me on salt pools?

Question

is salt an igneous type of rock? what are the uses of this mineral rock except for food? what gives the pools their color? please help.

Answer 1

salt is a igneous rock

Rock salt is also applied to road beds in cold climates to help reduce the freezing point of water on the road, thereby allowing it to not freeze-over at 0 deg. C

Saltwater pools use dissolved salt (3,000-6,000 ppm) as a store for the chlorination system. The chlorinator uses electrolysis to break down the salt (NaCl) and release the chlorine into the water. The main advantage of this is that the main chemical added to the pool is salt which is harmless compared to the usual bleaching agents like chlorine. As such, a saltwater pool is not actually chlorine-free; it simply utilizes a chlorine generator instead of direct addition of chlorine