Topic split off by Moderator.
I have the 5 way kit from HD and the instructions are very different from pool school. it stats FC and CC should be very similar, but CC should be 0 right? Are the definitions the same? This stuff is confusing. In the 5 way you test FC by adding solution and read in 1 to 2 seconds and CC you wait 3 minutes... it always seems to be the same. Should it go clear after 3 minutes with good pool chemistry?? Thanks