How to introduce the BBB chemicals into a Pool

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
San Rafael, CA USA
Unless you have an opaque-to-UV pool cover in which case you can add chlorine about once every 3-4 days. That's my situation. But Jason is right that most people using a fast dissolving or diluting source of chlorine need to add it every day if the pool is exposed to sunlight. Some exceptions are those who run their pools with high CYA (60-80 ppm) but then have high FC levels to compensate (or use an algaecide).