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.
This function returns the day of week (0-Sunday,1,2,3,4,5,6) for the specified date. Parameters: time - the date expressed in number of seconds that lapsed since 00:00 of the 1st of January 1970. The considered functions can be used for analysis of any bar opening time, for example.