I have the good Taylor kit that was recommended to buy. The original DPD powder reagent that came with the kit has run out. I bought extra testing chemicals that were recommended when I bought the kit. My question is this: I have a liquid container of testing DPD Reagent #2, labeled R-0002. Is this the same as the powder? If so, how do I use it? I guess I should call the company and ask? Just wondering if anyone on here knows, I am not even sure where I got my kit, now?