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What causes cloudy swimming pool water?

Before starting to treat cloudy swimming pool water, we need to understand the cause of this condition. There are three main causes:

1. Dirt accumulates

Dirt is the number one enemy of clear swimming pools. These include: Dirt, leaves, dead insects. These objects fall into the tank, decompose and create tiny particles that cloud the water. You can imagine them as a tiny cloud in the water.

2. pH imbalance

When the pH is not within the ideal range (7.2 – 7.8), it can cause:

3. Algae growth

Algae are small organisms but can cause big problems for your swimming pool. They grow strongly in environments with sunlight, warm temperatures, and lack of disinfectants. When algae thrive, they not only make the water cloudy but also create an unpleasant odor. In particular, algae-covered swimming pools can easily become slippery, causing danger to swimmers.

Cloudy swimming pool water can be caused by many different reasons

Prevent cloudy swimming pool water

As the saying goes, “prevention is better than cure”, preventing cloudy swimming pool water is just as important as treating it. Let’s look at effective prevention measures.

1. Cover the swimming pool when not in use

Step 1: Choose a cover suitable for the size of the swimming pool

Step 2: Spread tarpaulin to cover the water surface after use

Step 3: Remove the canvas and clean before using the tank

Using a tarpaulin also helps reduce water evaporation and saves heating energy for the swimming pool extremely effectively.

2. Take a shower before swimming

A simple but surprisingly effective habit!

Step 1: Take a quick shower

Step 2: Use soap to remove oil and cosmetics

Step 3: Rinse thoroughly before entering the pool

This helps remove dirt, sweat and other dirt from the body, minimizing the amount of dirt entering the pool water.

3. Clean the surface and bottom of the tank regularly

Use skimmer rackets to remove floating trash daily

Brush the tank walls at least once a week

Vacuum the bottom of the tank 1-2 times/week

This helps remove sediment before it has a chance to decompose and cloud the water. Create hygiene habits such as daily exercise to keep the swimming pool clean and beautiful.

It is necessary to clean the surface and bottom of the tank regularly

Determine the cause of cloudy swimming pool water

Once you discover that the tank water is cloudy, the first thing to do is determine the cause. This will help you take appropriate and effective treatment measures.

1. Visually check for dirt

Here’s the simplest step you can take right away:

Observe the water surface: Is there floating trash?

Look at the tank wall: Are there any stains or moss?

Check the bottom of the tank: Is there a layer of sediment?

If you see a lot of sediment, it could be the main cause of cloudy water.

2. Measure the pH of swimming pool water with a test kit

How to use the pH test kit:

Take a water sample from the swimming pool

Add a few drops of test sample to the water sample

Compare colors with standard color palette

If the pH is outside the range of 7.2 – 7.8, this may be the cause of cloudy water.

3. Signs of algae

Algae can cause characteristic signs:

If you notice these signs, algae is most likely the culprit causing cloudy water.

Measure the pH of the water to check tank condition

How to properly treat cloudy swimming pool water

After determining the cause, we will begin to treat cloudy swimming pool water in the following ways:

1. Remove surface residue

Tools needed: Skimmer racket and pool bottom vacuum

Implementation process:

Sweep across the water surface

Remove leaves, insects, and floating trash

Move the vacuum across the bottom of the tank

Vacuum away dirt and sediment

⇒ Note: Don’t forget the corners and gaps of the tank!

2. Balance the pH of swimming pool water

In treating cloudy swimming pool water, the process of balancing pH includes:

Step 1: Measure the current pH

Step 2: Determine the amount of flour to add:

Step 3: Spread the powder evenly on the water surface

Step 4: Wait 6-8 hours and check again

Balanced pH helps chlorine work more effectively, water is clearer and cleaner, safe for swimmers.

3. Chlorine shock treats algae

If the cause is algae, you need to “shock” the pool with high doses of chlorine. Implementation process:

Step 1: Determine the type of algae:

Green algae: Easiest to handle

Golden algae: Needs higher dosage

Black algae: The most difficult to handle, requiring very high doses

Step 2: Calculate the amount of chlorine needed:

Step 3: Spread chlorine evenly on the water surface

Step 4: Run the filter pump all night

Note: Do not use the tank for 24 hours after chlorine shock!

Chlorine shock when algae grows

How to maintain clean swimming pool water?

After treating cloudy swimming pool water, it is important to maintain clean swimming pool water. Take a look at the following steps:

1. Clean the swimming pool periodically

Make a regular swimming pool cleaning schedule:

Daily: Pick up floating trash

Weekly: Brush the tank walls and vacuum the bottom

Monthly: Thoroughly clean the entire tank

Make this a habit and you will find it much easier!

2. Check and adjust the amount of chemicals

Use the water test kit and adjust as necessary. Indicators to check:

3. Run the filtration system for enough time

Filter pump running time depends on:

You can divide the pump run time into several times a day to save electricity.

4. Replace filter cotton periodically

The process is as follows:

Step 1: Turn off the filtration system

Step 2: Open the filter lid

Step 3: Take out the old filter cotton

Step 4: Replace new filter cotton

Step 5: Close the lid and reboot the system

Normally, you should change the filter cotton 1-2 times a year. If your swimming pool is used frequently or in a dusty environment, you may need to change the filter cotton more often. Signs that the filter needs to be replaced:

Filter pressure increases

The swimming pool water is turbid than usual

The filter cotton has a bad smell or is torn

Replacing the filter cotton at the right time will help the filtration system operate effectively, maintaining clean swimming pool water for a long time.

Run the water filtration system periodically and for enough time

Frequently asked questions

1. What chemicals should be used to treat green swimming pool water?

When swimming pool water turns green, it is usually due to algae growth. For processing you should use:

Chlorine shock: This is the most popular choice.

Algaecide: Specialized algaecide.

Dosage: Use according to the manufacturer’s dosage

Advantages: Long lasting effect, little effect on pH

Activated Oxygen: An environmentally friendly choice.

Dosage: 15-20g/m3 of water

Advantages: Does not cause irritation, safe for sensitive people

Note: After treatment, it is necessary to run the filter pump continuously and check the chlorine concentration before using the tank.

2. What is the safe level of chlorine for swimming pool water?

Safe chlorine levels for swimming pools are between 1-3 ppm. Specifically:

Minimum: 1 ppm

Ideal: 2 ppm

Maximum: 3 ppm

Why is it necessary to maintain this level?

You should check chlorine levels at least twice a week and adjust as necessary.

3. How often should swimming pool water be changed?

Changing swimming pool water depends on many factors: Pool size, frequency of use, water quality, efficiency of the filtration system. However, to get the cleanest water, you need to follow the following schedule:

Instead of doing full water changes, you can do “partial water changes” more frequently. Change 20-30% each time to save water and costs, maintain chemical balance and reduce stress on the filtration system.

4. How to treat cloudy swimming water at home?

The answer is yes! You can completely treat cloudy swimming pool water at home. However, this requires some knowledge and tools:

Basic knowledge: Understand the causes of cloudy water and how to treat it.

Water test kit: To check indicators such as pH, chlorine.

Treatment chemicals: Chlorine shock, pH adjuster, algaecide.

Cleaning tools: Skimmer racket, pool brush, bottom vacuum cleaner.

Time and patience: The process may take several days.

Basic steps:

Step 1: Determine the cause

Step 2: Adjust pH

Step 3: Chlorine shock (if necessary)

Step 4: Clean the tank

Step 5: Run the filtering system

If after testing the water is still cloudy, or you are not confident, don’t hesitate to contact a professional.

5. How much does it cost to hire a swimming pool cleaning service?

The cost of hiring a swimming pool cleaning service may vary depending on:

Estimated average cost:

Regular cleaning: 500,000 – 1,500,000 VND/time

Turbid water treatment: 2,000,000 – 5,000,000 VND/time

Monthly cleaning contract: 3,000,000 – 10,000,000 VND/month

Note: Prices may be higher for large pools or requiring special treatment. Compare quotes from multiple service providers and read reviews carefully before deciding.

Where to buy chlorine chemicals at good, genuine prices?

Chlorine is a specialized swimming pool water treatment chemical. It is also used to treat wastewater, domestic water and supply water. Currently, on the market there are many types of chlorine from different brands. Among them, Dong A Chemical’s Chlorine is the best-selling product in Vietnam. The product brings great benefits in disinfecting, eliminating viruses and disease-causing parasites, and is effective in treating swimming pool water, wastewater and aquaculture water.

If you need to buy Chlorine, please contact Dong A Chemical immediately at hotline 0822 525 525 for support and the best quote. Hopefully this article will help you understand how to handle cloudy swimming pool water to apply it in practice most effectively.