The Tail Creek Raceway is located 40 Minutes east of Red Deer, Alberta, and 2 hours from Edmonton or Calgary. The nearest international airport is Calgary International Airport (YYC), but only by a few minutes.
Now above we are talking about the 6.4 level for urine and saliva that is averaged. (Urine pH ____ + (Saliva pH X 2 ___ ) ) / Divided by 3 = ____. For the measurement of urine and saliva by themselves, in general, you want pH of urine to be below 6.5 and saliva to be above 6.5.
The participants didn't have to achieve such a big rise in urine pH to get a much larger percentage rise in uric acid excretion. The rise in uric acid excretion was from 302 mg* a day at pH 5.9 to 413 mg*** per day at pH 6.5. That's an excretion increase of nearly 37% from a rise in urine pH of about 0.6 (on the pH scale), compared to the uric acid excretion and urine pH of a participant's average daily diet for the preceding month.