I don't have a K2006 here -- is the sample bottle 7 ml + 7 ml, instead of 14 ml + 14 ml? If so, it's indeed a typo.

But the point is you dilute POOL water 1:2 with DISTILLED water, mix that, and test the mix, as if it was pool water.

THEN, after testing, you multiply the test result by 3.

I hope this is clear.

Two other points:

1. The CYA test is NOT a drop count test; you simply add sample till the dot disappears, and then read the result on the side of the container.
2. Other dilutions are possible. If you dilute 1:1 (half pool water, half distilled) you multiply by 2; if you dilute 1:3 (1/4 pool water; 3/4 distilled, you multiply by 4.