Somehow I missed the Taylor link. As for the reagents that were specifically discussed: they all seem to be in good condition. However, half the reagents I have weren't discussed. One of them was R-0001 and you said you think my chlorine-testing reagents were expired.
I called my local pool store and they say they have everything I need, but I wonder if they have the exact same thing. Some of these reagents have very picky sounding names like "R-0007 THIOSOLFATE N/10". Are they as picky as they sound?