R-0871 Taylor Reagent


New member
Jul 30, 2013
Chesterfield Twp. Mi
I'm in the process of ordering new R-0871 reagent from Taylor does anyone know when you take a pool water readings with outdated reagent does it normally test lower or higher results?


TFP Expert
Platinum Supporter
May 23, 2015
Tucson, AZ
If the FAS reagent is compromised, it will take more drops of reagent to get the same results (assuming your DPD indicator powder is not compromised as well). Therefore you will get a false-high result.