There are different types of chlorinators: pool chlorine floats, as well as in-line chlorine dispensers, and chemical metering pumps. If you are not using a floating chlorinator, then you may have an automatic chlorine in-line feeder. For salt pools, if you install a salt chlorine generator, it will replace your chlorinator.
What does the chlorinator do?
A chlorinator dispenses sanitizer (either chlorine or bromine) into the water in a controlled, gradual manner.
How does it work?
Pool chlorinators use either tablets or sticks to sanitize your water and slowly disperse them into your pool. Most automatic feeders allow you to set the rate at which chlorine dissolves, regulating the amount of chlorine added to your pool.