In this scorching summer, swimming in the swimming pool is really a very pleasant thing. The swimming pool is a place that can bring happiness to everyone. For the problem of pool water, in fact, every swimming pool has a certain degree of water circulation. Filtration system to ensure the water quality is clean! ! It is like the sea, it will purify water!
在这个炎炎夏日，能到游泳池游泳真的是一件很惬意的事情，游泳池是一个可以给到大家带来快乐的地方，对于池水的问题，其实每一个游泳池在一定程度上都有水体循环过滤系统，以保证水质的干净！！这就像是大海，会自己净化水质！
That's really great initiative. I am hoping that all people or establishment that are having swimming pool should make sure that water is clean as always.
Yes, I also hope that after all, so many people swim in it, health and health are still very important! ! !