Why so much conflicting FC info

cj133

Well-known member
May 6, 2018
198
NJ
Everywhere I look there's different rules for chlorine. Why?!

Here's the instructions on the back of a bottle of Walmart pool bleach.

1 to 3 ppm without stablizer but only 1 to 1.5 with stablizer? Wheres that come from?

1110934
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
7,813
Northern NJ
That comes from outdated government recommendations that have not kept up with advancements in the science of pool care.

 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,202
Tucson, AZ
The pool industry has not accepted the science from 1973 to recognize the FC to CYA relationship. What we teach is backed by science and those that developed the methods are now working to teach and change the industry.