It’s important not to overload a pool with pollution. Since bather are the main source of pollution, the numbers using the pool on a daily basis should be controlled.
In order to calculate the total daily bather load the following formula should be used:
25 to 50% of the instantaneous bather load multiplied by 12.
As an example, for a pool with an instantaneous bather load of 110:
- 25% of 110 = 27.5 x 12 = 330
- 50% of 110 = 55 x 12 = 660
Daily bather load will be 300 to 660 bathers per day.
This information should then be recorded in the Normal Operating Procedures (NOP).
