Chlorine Generators

Posted by Admin User on Jul 5th 2013

Chlorine generators have been around since the 1980s, but need different care than other pool generators. This type of generator works by taking salt that has been added to pool water on fill-up and running it between electrically charged plates in a cell, which then produces chlorine gas. The chlorine gas goes into the water as it returns to the pool which provides a nearly constant source of sanitizer. Whether you service your own pool or have someone else do it for you, you need to know the important points to the service. The very first thing that should be checked is the water level. If the water level is not continuously flowing through the generator, the cells will not be able to make any chlorine. You also need to be sure to check the filter because if there is a bad filter element, this will slow the flow of water. No flow—no chlorine. Another important thing to do when you or your tech is servicing your chlorine generator is to regularly monitor the pH and alkalinity of the pool. It is best to keep a monthly log of what you record so that you can keep track of what is going on in your pool water. The log will help the tech or yourself in determining how a pool responds to different changes in its water chemistry. Being that chlorine generators have been around since the 80s, it is easy to overlook their sensitivities. After reviewing a few important tips for servicing your generator, the next important thing to check is the pool’s salt levels. Although this takes 15-20 minutes, it is definitely worth your time. These should be checked about once a month. If your water temperature drops below 55 degrees, you may have to manually add chlorine because the chlorinator will not work. Pools with chlorine generators shouldn’t need salt too often. However, the pool will need the most salt when it is new and being first opened up. The salt should be spread evenly into the pool and brushed around afterward. After this initial application of salt, it should not need to be topped off very often. The only time that salt leaves the pool is during backwash, through splashing, and by swim suits. Another issue is rainwater, which can dilute the salt water. The best rule of thumb is to start with less than you think you will need. Safer is better! You should also take care of the area surrounding the pool that gets splashed because concrete and high salt content are not a good mix. For more information on chlorine generators, contact the pros at