Why should the value of the pool's chlorine adjust what is residual value? First, pool chlorine, if inappropriate, swimming pool will smell, and secondly, the pungent smell of chlorine, long-term inhalation, chest tightness suffocation symptoms ranging from severe, there will be symptoms of asthma and other breathing difficulties. In excessive chlorine swimming pool, in addition to induce asthma, the skin is also prone to a number of signs of discomfort. So, adjust the value of the pool chlorine is also essential. Bazhou Hua Yi Yijing Environmental Protection Technology Co., Ltd. Website: www.hyyjhb.com Contact: Li Zhigang Phone: 18632603988 landline: 0316-6910073 QQ: 753498893 E-mail: 753498893@qq.com Address: Bazhou Economic Development Yashima Network finishing release