Testing cl while slamming


May 4, 2015
Mechanicsville, Va
Can someone remind me how to test chlorine when your chlorine level is high as to not use so much of the RO871. Sorry but I seem to remember there was a way where you only use half as much of the ro871 but I searched everywhere and can't find it


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
You can use a 5 ml sample of water, one scoop of powder, and each drop of reagent to clear equals 1 ppm FC.

Do not use that for an OCLT or daily maintenance.