Taylor K-1764 Total Dissolved Solids (TDS) TestThe Taylor K 1764 Total Dissolved Solids (TDS) Test is another easy to use kit from Taylor, giving you the ability to accurately measure a wide range of critical elements of water chemistry. This kit includes 2 ounce bottles and a 3 4 ounce bottle of each of these testing reagents. Simply fill the test tube with pool water and add the correct reagents according to the supplied directions, and you will have highly accurate results in seconds. Best of