Hello,
I searched for this answer but found nothing suprisingly??...

In my Ben's Test Kit - that I got last spring. It states that if the FAS-DPD (chlorine testing powder) goes med grey or darker replace it. What is the opinion of this board regarding this? My kit stays in the air conditioned / heated basement out of the sun all year, if temps matter...

Mine is grey now (I dont remember what color it was...) it seems to work fine so far this year? Should I got to Leslies and replace it? What is a Taylor replacement for Ben's powder? The exact replacement that is.... Seems like what I did read, the other tests dont use 2 drops per Chlorine reading...so to speak, I would like to keep it simple if possible.

thanks Kevin