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.
Production lifecycle. The primary sector of the economy is the sector of an economy making direct use of natural resources. This includes agriculture, forestry, fishing and mining. In contrast, the secondary sector produces manufactured goods, and the tertiary sector produces services. The primary sector is usually most important in less-developed countries, and typically less important in industrial countries.