Salary. The Bureau of Labor Statistics reports that marketing managers in the United States earned an average annual wage of $126,190 as of May 2011. The median wage, or midway point between the lowest and highest salary, was $116,010 per year.
What is TDS. TDS is the total of all dissolved solid matter such as minerals, metals, salts and. contaminants in the water. B. How TDS is Determined. TDS is most often determined in pool and spa water by using a conductivity meter. These. electronic meters measure the waters' ability to conduct an electric current.
Chlorine is obviously one of the key chemicals to maintaining your pool water and 3 inch chlorine tablets have quickly become the first choice for pool owners. Because they are thicker than other pool chlorine tablets, 3 inch tablets dissolve slowly and protect your pool water for longer. Moreover, 3 inch chlorine tablets are the ideal size for your floaters, skimmers, or automatic feeders.