I have a Taylor K-2006 complete test kit. I'm in mid-SLAM of pool and just realizing my R-0871 FAS-DPD titrating agent is near depleted. I planned to go to local Taylor rep in town and pick up new bottle but got a funny look. It seems everyone around here talks in terms of K-2005 kit and their chlorine reagent is R-0001. Could/should this be used in place of R-0871? Can it get me by until my 0871 reagent arrives? Help!