The outdoor swimming pool is an analogy of natural water reservoir that any person would like to see in his yard. Indeed, being in the indoor pool is impossible to enjoy the fresh air, the smell of flowers and just the surrounding nature. However, the open-air pool is exposed to many negative factors. Here are some of them: the evaporation of water (up to 3 liters per day from 1 m² of water area), excess of chemical reagents, as a result of the evaporation and overheating of water, night coolness, which increases the cost of funds spending on automatic heating of water, which becomes cold, getting dust, dirt, leaves, insects and so on in the water. However, all these problems are instantly solved by installing a pavilion that reliably protects the pool. The arched sliding systems installed on guiding rails, and covered with transparent polycarbonate, are easily movable to the water area, allowing you to enjoy the combination of nature and outdoor swimming. To the advantages described above should be added the swimming season increase almost twice and, most importantly, the safety of your children and pets.