The size standards of national swimming pools are as follows:

1, the standard size is 25m long, 1 1m wide and 1 m deep, and the tank volume is 44m. But you can also change the size of the pool according to your own needs, as long as the depth remains the same.

2. Pay attention to adjust the hardness of water when filling the swimming pool. The hardness of water should be moderate. If it is too high, aggregate will appear on the pool wall, and if it is too low, it will erode the mortar on the pool wall.