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.
Swimming in an indoor pool with no chlorine in the water. Swimming in a chlorinated pool with low levels of chlorine (0.5 parts per million (PPM)) Swimming in a chlorinated pool with high levels of chlorine (1.0 PPM) Running or cycling next to any of the pools.