What should we do with water (for a swimming-pool)?

What should we do with water (for a swimming-pool)? When you have got a swimming pool ... Description: Good idee Image copyright: - bnbcannes.com/photos/ Piscine_-_Swimming_pool.jpg
You should'nt over fill it . You should'nt jump in the swimming pool because you can waste water. Why not fill the swimming pool with rain water ? Why not buy a little swimming pool?

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