In my taylor K-2006 (Complete FAS-DPD chlorine) My free chlorine test reagents are
1. R-0870 DPD powder
2. R-0871 FAS - DPD tritrating reagent (chlorine)
For a 25ml water sample
The instructions call for 2 dippers of R-0870 powder (swirl, if free chlorine is present sample will turn pink)
then add R-0871 dropwise till color changes from pink to colorless.
then multiply the number of R-0871 drops used by 0.2
I have gotten reliable results using this kit as evidenced by crystal clear water.
I ran out of the R-0871 so went to my local pool stores to replace.
None of the three different stores in my area carried this reagent and furthermore none had even heard of it. They all showed me reagent for FC that were R-0001 and R-0002. The R-0002 is in the same brown bottle with yellow cap as my R-0871 and one pool store guy it must be the same thing.
I'm not so sure it is the same.
Does anyone know if R-0002 can be substituted for R-0871?
Why the different reagent #'s from the same company?
I'm really confused and would appreciate any help.