How do i dilute fas dpd for fc test?


Well-known member
Jan 7, 2010
Do i fill the container with 5 ml of pool water and the other 5 with tap water that is well balanced with a ph of 7.5 and alc of 90.

If i understand it right i would just have to count each drop as 1 ppm.

Ps i have high fc right now and i dont want to waste all my products.


Mod Squad
TFP Expert
Apr 4, 2007
SW Indiana
Don't use tap water unless it is unchlorinated well water. Just mix together equal parts (cups, shot glasses, tablespoons or whatever) of pool water and unchlorinated water. Then fill the sample tube with the mixture.