The pool - it's hydro facility, consisting of mainly bowl purification system and chemigation water and extras.
The bed of the pool - can be met by concrete or prefabricated buildings. Before making the important decision of how to fulfill your swimming pool, always consult with a specialist;
Treatment system of the pool - there are different types of treatment facilities, the most commonly used in pools are sand and cartridge filters. Both versions are complete with working pump that draws water from the pool and pumps it into the filter.