And because it's best to use bleach with a thinner viscosity that will dilute quickly, the best choice for shocking or chlorinating a pool is Clorox Regular Bleach or Ultra Clorox, which has a slightly higher level of sodium hypochlorite.
secondary sector include metal working and smelting, automobile production, textile production, chemical and engineering industries, aerospace manufacturing, energy utilities, engineering, breweries and bottlers, construction, and shipbuilding. The tertiary sector of the economy is the service industry. This sector provides services to the general population and to businesses. Activities associated with this sector include retail and wholesale sales, transportation and distribution, entertainment (movies, television, radio, music, theater, etc.), restaurants, clerical services, media, tourism, insurance, banking, healthcare, and law.
Primary industry is a larger sector in developing countries; for instance, animal husbandry is more common in Africa than in Japan. Mining in 19th-century South Wales provides a case study of how an economy can come to rely on one form of activity. Canada is unusual among developed countries in the importance of its primary sector, with the logging and oil industries being two of Canada's most important.