to keep the water clean and kill germs
Chlorine is generally added to swimming pools and other water attractions in order to keep the water clean. Doses of chlorine typically come in small tablets.
*clean chlorine.
HOCL or hypochlorus acid
Chlorine?<3
Chlorine is the most used (to disinfect and keep clean), but Bromine is also used.
chlorine
It's used to keep mainly the water clean - Also can use itself as it's own disinfectant.
Chlorine is always a must. You can also get algae killer/preventer and also make sure you have a working clean filter.
to keep it clean. ..
You clean it.
chlorine or the filter