History. Narrative Essay Examples In a narrative essay you tell a story, but you also make a point. So, it is like a story told for a reason. Narrative Essays: To Tell a Story There are four types of essays : â¢Exposition-gives information about various topics to the reader. â¢Description...
As a minimum, the average pool will want to keep the following chemicals on hand â even if you use a salt chlorinator, you will need these other pool chemicals from time to time: 1  Chlorine tablets and pool shock. 2  Pool pH Up and/or pH Down. 3  Test strips or test kit.
Gas Chlorine: Gas chlorine can either be added directly to the pool water, or it can be manufactured from ordinary salt in a chlorine generator such as the Chlorine Factory. In the long run, it is the least expensive of all three types of chlorine to use, but only the generators can be used by the pool owner.