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.
Granular chlorine can be broadcast over the pool water or added through the skimmer. Chlorine is an important pool additive because it destroys bacteria and pathogens. It's available in four forms: tablets, sticks, granules and liquid. Granular chlorine can be applied by broadcasting over the pool or adding it to the skimmer.