How To Apply Aluminium Sulfate To A Swimming Pool


Maintaining a swimming pool can be quite a daunting task, and balancing the pH levels of the water is essential for keeping the water clean and safe to swim in. 

While there are various chemicals that you can use to adjust the pH levels, applying aluminum sulfate to your swimming pool initially can be a game-changer. 

In this post, we will be guiding you through the process of how to apply aluminum sulfate to your swimming pool so that you can achieve crystal-clear water. 

Step 1: Test The pH Levels Of Your Pool

Before applying aluminum sulfate to your pool, it’s essential to test the pH levels of your pool water to determine if the water is already too acidic or basic. 

You can get a pool water testing kit from just any pool store or online. Typically, the pH levels in your pool water should be between 7.2 to 7.6 range. If the levels are higher or lower than the recommended range, adjust accordingly.

Step 2: Calculate Aluminum Sulfate Needed

Once you’ve tested the pH levels, the next step is to calculate the amount of aluminum sulfate that you will need for your swimming pool. 

It’s advisable to use 2.4-5.0 lbs of aluminum sulfate for every gallon of water in your pool. So, if you have a 20,000-gallon pool, you should use around 48-100 lbs of aluminum sulfate.

Step 3: Add The Aluminum Sulfate

To add aluminum sulfate to the pool, it’s best to use a pool brush and distribute it evenly around the pool. Start by turning off the pool pump and filtering system, then pour the aluminum sulfate into the pool. 

Slowly mix the aluminum sulfate around the pool using the pool brush until it’s fully dissolved. Allow the water to circulate for at least 24-48 hours before adding additional pool chemicals.

Step 4: Monitor The pH Levels

After adding the aluminum sulfate to your pool, it’s essential to monitor the pH levels regularly to ensure that the levels are stable. With time, the aluminum sulfate will begin to react with the water, and the pH levels will drop. 

If the pH levels become too low, adding a pH Increaser will help balance the levels. Continue to check the pH levels for the first few weeks, decreasing the frequency as the water stabilizes.

Step 5: Maintain Your Pool’s pH Levels

After successfully applying aluminum sulfate to your pool, it’s now crucial that you maintain the pH levels. Keep your pool’s pH levels between 7.2 and 7.6 by testing the water every week and adjusting accordingly. 

Proper maintenance also includes regular water testing, cleaning the pool filters, and ensuring that the pool pump is working correctly.

Conclusion

Applying aluminum sulfate to your pool is a vital step toward achieving safe and crystal-clear water. With the five steps outlined above, you can easily add aluminum sulfate to your pool and maintain pH levels throughout the swimming season. 

A stable pH level prevents algae growth, keeps your pool safe and enjoyable for swimmers, and helps prolong the life of the pool equipment. 

So, what are you waiting for? Follow these steps for a successful aluminum sulfate application and enjoy a sparkling clean pool this swimming season.

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