We believe that those with saltwater swimming pools may have encountered the problem of the water not being clear or sometimes having a greenish hue. The most direct solution is to properly and consistently manage the water quality to maintain safe water quality and good for the health of users. In this article, Mister Pool will introduce the steps for maintaining a saltwater swimming pool system in detail, showing you how to do it. We guarantee that if you follow these steps, your pool water will be clean, clear, and inviting to swim in all the time.

Steps for maintaining water quality in a saltwater swimming pool system to ensure clean water

Check pH regularly.

The acidity or alkalinity of water is an important variable in water quality. In a saltwater swimming pool system, the pH should be in the middle range of 7.2 – 7.6. This can be measured using a pH test kit, either a drop test, litmus paper test, or a digital test kit. Measure four points at the four corners of the pool to obtain an accurate average. If the pH is lower than 7.2, the pool water is acidic, which can corrode the hair and skin of users. You must add alkali or soda ash to correct the problem. However, if the pool water has a pH value higher than 8.2, the water is alkaline, which is a condition that promotes the growth of algae, plants, and other organisms. You must correct this by adding an acid such as pH Minor or pH-. Then, re-measure the water after approximately 10-15 minutes.

Check the chlorine level.

Chlorine levels in swimming pools are generated by saltwater pool filters, which convert saltwater into pure chlorine, which has important properties in helping to kill germs and algae. Normally, the appropriate chlorine level for swimming pools should be between 1.0 and 3.0 PPM. This can be measured with a chlorine drop test kit, a litmus paper packet test kit, or a digital chlorine test kit, measuring at the four corners of the swimming pool, just like the pH measurement.

Check the salt level.

The salt used in saltwater swimming pools is specifically designed for swimming pools. Table salt or cooking salt cannot be used. The amount of salt to add depends on the size and volume of water in the pool. The ideal salt level should be around 4,500-6,000 PPM. If too little salt is added, the saltwater pool filter will not be able to convert enough salt into chlorine to kill germs. This may result in the pool water being unclear and potentially turning the water green with algae. The device used to measure the salt level is a salt test pen that will read the salt level in PPM units.

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Regularly clean the salt converter. Salt pool filter systems

consist of titanium rods that convert the salt in the pool into pure chlorine. After about 1-2 weeks of use, dirt may build up on the salt converter rods, preventing them from working efficiently. Sometimes, they may stop working altogether. Therefore, you should regularly remove the salt converter rods and clean them every 7-14 days by soaking them in vinegar and scrubbing off all the dirt with a toothbrush.

Backwash Sand Filter

The water filter is a sand filter and salt filter system. It consists of a filter tank that filters the water in the pool to be clean by circulating water into the sand filter tank to filter out dirt or dust that falls into the pool and traps it in the sand filter tank. The sand filter should be backwashed at least once a week. The cleaning method is to let the water pass through the sand filter until the water that is sprayed out is clean. Then turn off the machine and turn the lever to adjust the sand filter surface mode. Press to turn on the machine for about 15-20 seconds and then turn off the machine before turning the lever back to normal mode.

Regularly vacuum the sediment beneath the pool. Sediment

beneath the pool is caused by dust, insects, or leaves that fall into the pool. Some of this can be filtered through the filter system, but some may sink to the bottom or be in large pieces. Therefore, you must regularly use a swimming pool cleaner to vacuum the sediment beneath the pool, as well as regularly scoop out leaves and discard them outside the pool to prevent them from becoming food for germs in the pool.

Always shower before getting in the pool.

Sweat, skin cream, and dirt from your clothes can build up on your body. Therefore, before swimming in the pool, you should change into a swimsuit and shower before getting in to prevent dirt from contaminating the pool, which is another factor that can cause cloudy water.

These are all methods of controlling water quality in saltwater swimming pool systems that you can adapt and use. We hope that these will be useful to those with saltwater swimming pools who want the water in their pools to always be clean. And if you want to build a saltwater swimming pool system, MISTER POOL builds public swimming pools and installs saltwater swimming pool systems. With over 30 years of experience, we can build a swimming pool for you as desired. Guaranteed by over 1,000 customers nationwide, we also distribute a full range of swimming pool equipment.

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Last Update: December 1, 2025