They don't. Notice that they're either hanging on the lane line, grabbing the wall, or treading water.
Yes, a machine in a form of sensors judges the swimmers.
Each lane has a line on the bottom that the swimmer can use to help swim straight. The line ends in a "T" near both ends, indicating that they are getting close to the wall/end of pool.
As long as the floor: in other words, wall to wall.
Hydralic cement?
A sport wall is a temporary wall or boom that is placed in the swimming pool to shorten the length of the pool to make it regulation length for a swimming competition. Some 50m pools hold 'short course' competition and the regulation length is 25m so the pool needs a wall to measure this length in order for the competition to be official.
75ft
When was the last time you cleaned the pool filter?????
6 inches
The wall is steel and concrete so the short answer is that you do not.
Hmmm, I wonder just how long a plywood wall would last in ground or above ground for that matter? You might want to consult a pool builder.
go to the coffee shop and then click on the big, orange and tall picture on the wall. then you will be at the pool