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.
TDS, otherwise known as Total Dissolved Solids. About three years after putting a pool in our backyard, we started having problems keeping a consistent level of chlorine in the pool. We would add bag after bag of pool shock, but each time we tested the pool water the chlorine reading would be non-existent.