system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 : why does saltwater systems in pools kills bacteria and algae, while the sea is full of life?
gpt
Because salt water pool systems convert the chlorine ion in salt (a sodium ion with a chlorine ion [NaCl]) into actual chlorine through electrolysis. The chlorine generated kills off bacteria and algae much like a regular pool. This system eliminates the need to dump chlorine into the pool as it is generated from the added salt.