The DPD/FAS test does just test FC and CC, but if you add those two numbers together, you get your TC reading. I'm still a little confused about what you did, though. You do not need to dilute the sample when doing the DPD/FAS test. Just take a 10 ml sample of pool water, add a scoop of DPD powder, swirl and then add drops of R-0871 one at a time, swirling after each one. When the sample turns clear, multiply the number of drops by 0.5 and that is your FC reading. To check for CC, take the same sample (not a new one) and add 5 drops of R-003 and swirl. Then, add more drops of R-0871 one at a time, swirling after each. Multiply the number of drops by 0.5. That is your CC reading. Add the FC and the CC readings to get your TC reading. I hope this will clarify for you how to do the test.

Retest without diluting the sample and then repost your readings and somebody here can help you.