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.
Pool ionizers release metal ions into your pool water. Most often copper will be used, sometimes in combination with silver, sometimes with zinc. The ionizer is usually a chamber where metal rods are placed and where the water can run through the chamber while a small electrical currents are run through the metal.