Home > News > High Cost of Changing Water in Swimming Pools? The Synergy of Online Residual Chlorine Detector and Circulating Filtration System Saves Water and Maintains Water Quality
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  • High Cost of Changing Water in Swimming Pools? The Synergy of Online Residual Chlorine Detector and Circulating Filtration System Saves Water and Maintains Water Quality

    Time:September 2, 2025

    For most swimming pools, the operating cost has always been a headache. Among them, the cost brought by frequent water changes accounts for a significant proportion. Due to the lag in traditional residual chlorine monitoring methods, staff simply cannot accurately and timely determine whether the water quality can still be recycled. In this situation, many swimming pools have no choice but to change the water frequently. For example, some swimming pools change the water once a week. The water fee for changing water and the heating fee for heating the water to an appropriate temperature together account for more than 30% of the operating cost. Moreover, the swimming pool must be closed during water changes, and the revenue loss during this period cannot be underestimated. Next, Maideshi, a chlorine sensor Manufacturer, will explain it in detail for you!

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    In fact, the key indicator for whether the pool water can be recycled is residual chlorine. Generally speaking, the residual chlorine needs to be stable within the range of 0.3 - 1.0mg/L. If the residual chlorine meets the standard and there is no other pollution in the pool water, then after being treated by the filtration system, the pool water can continue to be used. However, the traditional manual monitoring method cannot judge the residual chlorine situation in real - time. Staff can only adopt a one - size - fits - all approach. Regardless of the actual water quality, they change the water at a fixed time.

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    However, with the emergence of the online residual chlorine automatic sensor, the situation has changed greatly. It can be linked with the circulating filtration equipment, namely the quartz sand filter and the activated carbon filter. The online residual chlorine detector will monitor the residual chlorine concentration of the circulating water in real - time. If the residual chlorine is within the qualified range and the turbidity is less than 5NTU, it will automatically keep the filtration system running at a high frequency. In this way, the service life of the pool water can be greatly extended. If the residual chlorine shows an abnormality, it will immediately suspend the circulation and trigger a reminder for adding chemicals or changing water, so that the staff can handle it in time.

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    It can also be linked with the water quality early - warning system. Sometimes, when the number of tourists suddenly increases, the residual chlorine is consumed too quickly, resulting in a continuously low residual chlorine level. At this time, in addition to linking with the chemical - adding equipment to increase the residual chlorine content, the online residual chlorine detector will also remind the staff to check whether there are pollutants entering the swimming pool. For example, skin - care products and sweat brought in by tourists may affect the water quality. Staff can take targeted measures in a timely manner according to the reminder, such as increasing the frequency of sewage suction, so as to avoid changing the water prematurely.

    A medium - sized swimming pool has achieved remarkable results after using the linkage solution of the online residual chlorine detector and the circulating filtration system. The water - changing cycle has been extended from once a week to once every three weeks, and the monthly savings in water fees and heating fees exceed 20,000 yuan. Moreover, the qualification rate of residual chlorine has increased from 70% to 99%, and the water quality has been greatly improved.

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    For small and medium - sized swimming pools and hot - spring venues, this linkage solution is of great value. It can reduce the water quality maintenance cost by 40% and reduce the time for closing the venue to change water, allowing the venue to operate for more time and thus increasing revenue. At the same time, it also avoids the problem of unstable water quality caused by frequent water changes. If you also have similar troubles, welcome to consult Maideshi, a chlorine sensor Manufacturer. Swimming pools and hot - spring venues can save costs while ensuring water quality and providing better services for customers.

    As a reliable chlorine sensor Manufacturer, Maideshi offers high - quality Digital residual chlorine sensor and online residual chlorine detector to meet your needs in water quality monitoring. If you are interested in our products, please feel free to contact us for more information.




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