The pool can be assumed to maintain the same length at all times between the two mesurements.
What makes you think the bulkhead was never moved? Also there have been cases where lane lines have been overtensioned causing the pool to be shorter in the center lanes. If the pool is properly measured before the competition these problems can be identified and corrected, if not it's a guessing game. That's why the pool needs to be measured immediately before the competition begins.
The pool can be assumed to maintain the same length at all times between the two mesurements.
What makes you think the bulkhead was never moved? Also there have been cases where lane lines have been overtensioned causing the pool to be shorter in the center lanes. If the pool is properly measured before the competition these problems can be identified and corrected, if not it's a guessing game. That's why the pool needs to be measured immediately before the competition begins.
