Attach a micron gauge to the male flare end, a gauge to the tee end, and a line from the tee to the pump. Turn the pump on and you will notice the side closest to the pump will be a lot lower than the other.
The WEEKNUM function is used in Excel to return the week number of a specific date in the year (a number between 1 and 54). It has two arguments, the 1st is required and the 2nd is optional: WEEKNUM(serial_number, [return_type]) Serial_number - any date within the week whose number you are trying to find.
c=clock %returns a six element date vector containing the current time and date in decimal form: [year month day hour minute seconds]. Alternatively, in this case, you can use functions year(now), month(now), day(now), hour(now), minute(now), and second(now) instead of c(1), c(2), c(3), c(4) c(5), and c(6).