Chlorine Feeders and Salt Generators
Keeping the pool water sanitized is probably the most important aspect of the pool maintenance. Without the proper amount of sanitizer, the water gets unhealthy and sometimes dangerous as the warm summer temperatures and the sunlight turn your pool into a perfect environment for skin and eye inflammatory bacterias. And of course, sometimes the presence of too much sanitizer in the water dry off the skin and irritates the eyes and noses of the swimmers.
The easiest way to avoid all that is to install either traditional sanitizer feeders in your pool or choose sanitizer generating system that will change forever your pool experience.
The feeders are installations that feed the sanitizer to the already filtrated water before it gets back to the pool. That is the cheapest solution for your pool but definitely not the best.
The feeders require you manually to fill them up with the sanitizing chemical (Chlorine or Bromine) and to manually adjust the output levels. That usually leads to over or under sanitation of the water.
Salt Chlorine Generators
Saltwater chlorination is a process that uses dissolved salt as a store for the chlorination system. The chlorinator uses electrolysis to break down the salt (NaCl). The resulting chemical reaction eventually produces hypochlorous acid (HCIO), and sodium hypochlorite (NaClO), which are the sanitizing agents already commonly used in swimming pools. As such, a saltwater pool is not actually chlorine-free; it simply utilizes a chlorine generator instead of direct addition of chlorine.
The important distinction is that saltwater pools (usually) lack chloramines, referred to as combined chlorine. Chloramines are the irritants which give traditional pools the stigma of burning eyes and caustic smell.