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.
Quaternary Industries. 1  Involve the use of high tech industries. 2  People who work for these companies are often highly qualified within their field of work. 3  Research and development companies are the most common types of businesses in this sector.