Johnlong.org

How Frequent Should You Check Pool Water Quality

Pool water quality is important if you want to maintain a sanitary condition of your home pool but your health condition too. Not only drinking water is important, but the water that has direct contact with your skin and is absorbed while swimming can pose great risks to your health. Testing the water means seeing what it actually contains. This way you can find out if your pool is full of pathogens or maybe out of chlorine. If the chlorine level is running low, it would be recommended to take measures immediately because an infected water brings great risks of developing a lot of diseases especially to children and elderly people that have a weaker immune system.

How often should you check your pool water quality?

This question has been asked to more pool owners and they had different opinions. Some of them related that during summer they are testing their pools once a week and in the winter once a month. Others have related that they do this kind of test every day, twice a week or less than a month. So the testing period doesn’t come with a rule and doesn’t provide specific guidance.
Your main interest is to keep a safe swimming environment for all the people that are getting in contact with your pool. By regularly testing your pool water’s quality you are keeping the pH, the alkalinity, and its chlorine levels at a proper limit. This limit should be able to keep swimmers away from E. Coli, Giardia, Hepatitis A, Crypto parasite and a lot of other harmful viruses.

How to maintain a proper water quality

After providing a good condition to your pool water is important to maintain it as long as possible. A proper hygiene of those who are using the pool is also required. But also when it is not used, it is mandatory to keep a clean water environment.

Shocking the pool

This method means over chlorinating your pool. To be more specific, it means adding 10 times more chlorine than it is recommended into the water, in order to kill bacteria, algae and other contaminants after large amounts of rain, after the pool is heavily used by numerous people or after long periods of hot and sunny weather.

Using robotic pool cleaners

This is the most comfortable and effective method of keeping your pool water clean. After testing the water, you should be able to know what health measures you have to take. You can try this method of using automatic pool cleaning devices that are able to do all the hard work for you. They can be programmed to clean the water at certain periods of time and it seems they are doing a great job using a lot of moving and debris detection sensors.

Learn how to check your pool water balancing chemicals

Adding a large amount of chlorine to the water can produce skin and eyes irritation, but in case of not adding the right amount of it, the water will not be able to remove contaminants. Most of the pool owners test their water pool using a DPD testing kit. The method is quite simple because it is based on the reaction produced between the sanitizers added to the water and the DPD solutions that turn the water into different colors.
The pH level measures the acidity of the water and its ideal level would be somewhere around 7.5-7.8. If its level lowers under 7.0, it means the water is too acidic and can create a corrosive area.
The Alkalinity level refers to the alkaline substances from the water. Alkalinity is able to influence the level of pH, meaning that a very low level of water alkalinity leads to an unstable level of the pH. Its proper level should be around 90-120 ppm.
Cyanuric Acid has the ability to keep chlorine in the water for a longer period of time. On extreme sunny days, the level of chlorine can drastically decrease in less than 2 hours without adding it a stabilizer. Its proper level should be around 25-50 ppm.


Free Chlorine level refers to the available level of chlorine that you can work with. A proper level of free chlorine should be around 1.0-2.0 ppm.
Calcium hardness level measures the water’s softness or hardness. Because hard water has a great content of calcium and magnesium, they can easily deposit on the pool’s surface and make the water look cloudy. You should keep it under 300 ppm, but if its level is too low you should add Calcium Increaser.
Total Dissolved Solids should remain under 5000 ppm. When the water starts evaporating, minerals are left behind that over time can create pool stains. To lower the TDS level, you have to drain water from the pool and add a fresh one.