After adding 5 drops R-0004 you get a direct pH reading.

R-0005 is acid and the test is used to estimate the amount of acid you'd need to bring the pool to a specific pH. We almost never ask anyone to do that test.

If your pH is 8 after 5 drops of R-0004, skip the Borax doses.

Sorry, Watermom, for messing up the step numbers.