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mardi 4 novembre 2014

Understanding Pool Demolition Los Angeles

By Etta Bowen


A pool is an artificial pond intended for bathing and sports such as swimming. The word was originally used to designate wells for freshwater or saltwater. It was also used to designate water tanks connected to the water supply. The early Christians used the word pool to designate the font. Indeed, before the invention of the treatment plants in pools, bathrooms or decorative, outdoor fish are used to clean water, as insect larvae ate, and hence the name (pool demolition Los Angeles).

Duckling, Iris, Plein-Ciel, full-Sun and Sunflower pool after the national program to build pools of industrial type, launched in the early 1970s, which resulted in the construction of some 183 pools of its kind in France in the late 1970s and early 1980s in 1976, the first wave pool in France is built on the basis of outdoor Saint-Quentin-en-Yvelines.

There are also several modalities, such as fixed, portable and removable. In sports world we can distinguish three types of pools. Today's pools have experienced significant technological advancement, especially in terms of water purification and sanitation.

Water is clean and transparent. It is done by recirculating water through a suitable filter. The filter is usually a thick layer of sand contained in a reservoir provided the size of pools. A pump passes water through the filter, which retains the impurities that may be in it. The dirty water can be of three types, and each has a system to remove.

While pools are long remained mere basins, some aquatic centers have become increasingly sophisticated with a variety of equipment such as games, water slides, pools where you can swim against the current of rivers current, hydro-massage or spa. Efforts also focus on the quality of indoor air (it seeks to reduce chloramines to smell and their effect on the health of personnel. Another product, PHMB, alternative to chlorine, has been tested on an experimental basis and banned in 2010.

The term "swimming" appears for the first time in 1785 Turquin Bartholomew opened the first school swimming on a floating on the Seine near the tournelle bridge in the 5th arrondissement of Paris basin. The pools and thus becomes a place of sport and play. In nineteenth century, the first "public baths" are emerging especially in Paris, but also in other cities.

The filter requires periodic cleaning is achieved by circulating the water in the opposite direction to filter for a while, the water should go to the drainage system. This is to prevent microbes thrive in water or fungi that may be harmful to swimmers. Chloro derivatives are employed, the pH is controlled and sometimes even water temperature. New needs arise.

The supervision of an admission fee pool being in all possible cases by BNSSA under the responsibility of a BEESAN. Holders of the State Patent and MNS BEESAN must pass all five years of a CAEP MNS (certificate of qualification in the profession of lifeguard) for the right to exercise their profession. These two patents allow monitoring ponds and teaching swimming against remuneration. BNSSA holders must pass every five years a review of revision, which controls their ability to swim and rescue to exercise.




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