Pool Floc Not Sinking

A lot of pool experts believed that using a flocculant or pool floc is the fastest answer when dealing with cloudy water in the swimming pool. They said it is the best solution when your filtration system is not working and your pool water is slowly getting cloudy.

But what if the flocculant does not work when you use it in the pool and does not sink as expected. Pool floc not sinking, why? This will probably be the immediate question that you will raise once you encounter this situation.

In this article, we will be discussing the importance of using a pool floc in cleaning and making the pool water crystal clear. We will also be dealing with other related information about the use of flocculant and its relation to the pool clarifier.

What is Flocculant?

When you are dealing with cloudy water and most of the methods you have used was not effective, you probably need a flocculant to make the water clear again. They say that a flocculant or a pool floc is the fastest way to make your water crystal-clear again. But how flocculant does it will be discussed later in this article.

Flocculant is a coagulant, a type of element that causes all the small and microscopic dirt in the pool such as algae, dust, and other particles to gradually combine and become bigger for easy picking and cleaning by the pool cleaner. This chemical will put together all the tiny floating fragments of dirt found in the pool that is too small to see with the naked eye.

Once all the dirt and tiny particles are already clung together, the weight will cause them to sink on the bottom of the pool. When this will happen, it is now the turn of the pool filter to absorbed or suck the dirt or the pool cleaner can clean it up by using the pool vacuum.

Flocculants – Clear the Water Fast (Benefits of Flocculants)

There are a lot of benefits when using a flocculant. First of all, it is an alternative to treat cloudy water and make it crystal clear again. I know there are a lot of ways and methods in treating or cleaning pool water and flocculant is one of them. Furthermore, flocculant helps clean the dirt in the swimming pool which is too small to see with our human eye.

While the pool filter helps in catching particles in the pool water, those small particles which come in microscopic sizes remain in the pool water for a long time. The flocculant will be the best option for the pool cleaner to remove these tiny particles away from the swimming pool.

Another benefit of using a flocculant is it helps the pool cleaner to be efficient in cleaning the swimming pool. It is a fact that the pool cleaner does not have the ability to see the smallest particles that are suspended in the pool water. With the use of the flocculant, it will make those tiny particles to combine and sink in the bottom of the pool making it easy for the pool cleaner to remove it through the use of a pool vacuum cleaner.

What’s the Difference Between Flocculants and Pool Clarifiers?

Before discussing the difference between a flocculant and a pool clarifier, it is good to note that both chemicals are coagulant or elements that causes the process of coagulation in which the tiny and suspended particles found in the pool water combines to form a block which will then sink in the bottom of the pool when becomes heavy.

However, the main difference between the two is the amount of time both chemicals work in doing the coagulation process. If you want to have a faster result, it is highly recommended to use a flocculant to clean your pool water. Meanwhile, a pool clarifier works the same as flocculant but it is a milder chemical and it may take a longer time or even a few days to finally clean and clear the pool water.

So, if you need to use your pool urgently, it is advisable for you to use a flocculant instead of a pool clarifier. Furthermore, the use of the two coagulants largely depend on the urgency of your need to use the swimming pool.

When to Use a Clarifier Instead of a Flocculants?

As I’ve said earlier, the use of the two pool cleaners largely depends on the urgency of your need to use the swimming pool. If the pool will be needed in a few hours and the water is still cloudy, it is advisable for you to use flocculant. All you have to do is pour it in the pool water and proceed to clean the pool to prepare it for the activity.

But if you have the time and the pool activity is a few weeks away, then the pool clarifier is the best option for you. Aside from the time factor, a clarifier can work with the pool cartridge filter while flocculant doesn’t. Furthermore, using a clarifier requires less amount of water as there is no need to vacuum the pool after use.

Using a flocculant or a pool clarifier will largely be depending on you and the urgency of using the swimming pool. But rest assured that both are effective in cleaning and making the pool water crystal clear again.

How to Floc a Pool?

The best thing about a flocculant is it works and acts quickly compared to a pool qualifier. You can immediately get the desired result 24 hours after the application. However, the need to vacuum the swimming pool is necessary to remove all the dirt and debris on the pool floor. Here is the simple process of applying a flocculant in the swimming pool.

  • The first thing to do is to fill your pool with water to raise its level. This is needed in anticipation of losing more water during the application process and the vacuuming stage.
  • The next step is to balance the pH level and ensures that the chlorine is working fine to ensure the efficiency of the application process.
  • The next step is to mix the flocculant with water. You should base your dilution process on the instruction stated in the flocculant container. After that, gently pour off the flocculant on the different edges in the swimming pool.
  • The next step is to let the flocculant spread evenly throughout the pool by letting the pool pump run for a few hours.
  • When the flocculant is evenly spread in the pool, the next step is to turn off the pool pump so that the water becomes stagnant and lets the flocculant work its magic. Eight to twelve hours is enough for the flocculant to do its job and collect all the tiny particles and dirt in the swimming pool.
  • After the 12-hour period, turn on the pump and you will immediately notice particles or residue settling down the pool floor which is the result of the application of flocculant.

Application and Removal of Flocculants

After the application process stated above, the next step is to remove the residue away from the swimming pool. The steps below will show you the process.

  • The first thing to do is vacuum all the combine particles or the residue away from the swimming pool. Furthermore, avoid using the filter in removing the dirt on the pool floor and instead do it with the use of the vacuum cleaner.
  • After removing all the dirt in the pool floor, stop the pool pump and make the rotary valve in recirculate mode. After that, turn on the pump and let it work for 2 hours to be able to let those residues that escape the vacuuming to be in one place.
  • The next step is to set the rotary valve to waste mode and start vacuuming all the remaining residue away from the swimming pool.
  • After that, it is now time to set all the rotary valves and the other switches into filtration mode. Immediately check the chemical composition of your pool water especially the chlorine and the pH level.

If after the application process you will still see the pool water cloudy, it’s probably caused by other reasons aside from the dirt in the swimming pool. Maybe there is a problem with the pool’s sand filter or some other malfunctions that need to be corrected.


The pool Floc not sinking, why? This will probably be your question once you will notice that the flocculant you applied in the pool is not working. However, this is a rare occurrence as flocculants have been proven to effectively clean the swimming pool.

When you begin to notice that your pool water is getting cloudy, it is highly recommended to use a clarifier first and see if it will be effective in clearing the pool water. However, if this is not effective, then the next choice is to use a flocculant and see for yourself if it will be effective in making your pool water crystal-clear again.

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