IC40 Chemical Question


LifeTime Supporter
Sep 16, 2008
Jacksonville, FL
I am reading in the IC40 manual that they recommend 1-3ppm of FC. It states anything over 3ppm could cause corrosion to pool metals and cause damage to associated items.

Same with TA... the IC40 manual says 80-120ppm but it lists 60-80ppm here.

Just want to make sure I do what is best for my pool. Thoughts?


Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
Bedford, TX

They assume zero CYA... CYA buffers the chlorine so you end up with less active chlorine.

I have three saltwater pools where I run the FC at 6 to 8 ppm.. They have been saltwater pools for between 5 and 7 years... I have had zero issues with corrosion, or any other so called "salt related" problems.

I follow the TFP pool care process and have never had to add a single bag of pool store shock... I can't think of any reason that I would want to run my FC at 1 and fight algae three times a year... :)


Jim R.