How to Deal With Flakes in Your Hot Tub

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How to Deal With Flakes in Your Hot Tub

You're not alone if you've noticed flakes in your hot tub. This is a common problem that hot tub owners face. But don't worry; you can take steps to get rid of the flakes and prevent them from coming back. Here's what you need to know.

Flakes in hot tub water

Have you ever wondered what those white flakes are in your hot tub water? While they may look like they belong in a snow globe, they are a type of algae known as bacillariophyta. These algae are commonly found in lakes and ponds but can also thrive in hot tubs and spas. Bacillariophyta gets its name from its long, rod-like shape. Under a microscope, these algae resemble small sticks or branches.

hot tub scum
What Causes Flakes in a Hot Tub?

While bacillariophyte is not harmful to humans, it can cause your hot tub water to become cloudy. In addition, this type of algae can quickly multiply, resulting in a buildup of flakes on the water's surface. If left untreated, bacillariophyte can eventually form slime on the walls of your hot tub. It is most important to regularly clean your hot tub and maintain proper water chemistry to prevent this from happening. These steps allow you to enjoy crystal clear hot tub water all year long.

What Causes Flakes in a Hot Tub?

There are two possible main reasons for white flakes in your hot tub, and knowing which one you are dealing with will help you treat your hot tub properly.

The two possible causes are:

  • Calcium Scale Deposits
  • Biofilm Growth from White Water Mold

The first is that the water contains high calcium levels or other minerals. When these minerals come into contact with the air, they can form a hard residue on the hot tub's surface. This residue is often visible as white or brown flakes.

The second reason for flakes in a hot tub is that the water contains high levels of bacteria or other contaminants. These contaminants can cause a biofilm on the hot tub's surface. This biofilm is often visible as cloudy water or flakes floating on the surface.

Testing White Flakes in Your Spa Water

If you're seeing white flakes floating in your hot tub water, don't panic! It doesn't mean your hot tub is ruined - it just means you have to take some extra steps to eliminate the calcium deposits and biofilm growth.

The first thing you need to do is get the flakes checked by a professional. This is a relatively simple process you can do yourself, and you don't need any special equipment or training. Collect hot tub water and flakes in a clean glass or bowl, add 15-20 drops of bleach or liquid chlorine, and stir the solution.

Let it sit for 40 minutes; if the flakes disappear after 30 minutes, you have biofilm buildup in your hot tub. If they're still there in the cup after 30 minutes, you have calcium deposits in your hot tub.

hot tub filters
Testing White Flakes in Your Spa Water

Fortunately, there are simple steps you can take to get rid of both of these problems. Regular shock treatments with chlorine or bromine will do the trick for biofilm buildup. For calcium deposits, you may need to use a descaler like Calcium Out to remove them.

So if you're seeing those pesky white flakes in your hot tub water, don't worry - take a few minutes to test them and figure out what's causing the problem. With a little work, you can get your hot tub back to its sparkling best!

Removing and preventing white flakes

Flakes can occur when residue or biofilm is removed from the hot tub.

Use a tube or pipe cleaner to flush your hot tub, run the pumps on full speed as often as possible and remove the filters to maximize water flow.

After this drain, your hot tub put the filters back and fill it up again.

If you still notice too many flakes… then repeat the process or wait until the filters pick up the leftover residue.

Be patient. This process takes time.

O-Care was pacifically developed to prevent this problem; you should give it a try when you're tub is clean again… and make water maintenance easy.


If you're noticing white flakes in your hot tub, it's likely because of a biofilm buildup. Biofilm is a slimy substance that can form on the water's surface and on various surfaces in the hot tub. It's made up of bacteria, and if it's not cleaned off regularly, it can cause problems like algae growth and bad odours.

To remove and prevent biofilm buildup, you should clean your hot tub regularly and consistently check and balance the water. Make sure to clean the hot tub cover, filters, skimmer and all other elements of your tub. You should also shock the water to kill all of the bacteria.

Once you've completed these steps, your hot tub should be free of white flakes and other problems caused by biofilm buildup!

If you're having trouble keeping your tub clean, you should try using O-Care. O-Care is specifically designed to prevent build-up and make water maintenance easy. By using O-Care, you can keep your tub looking clean and new for years to come.

Calcium Scale Deposits

When dealing with calcium scale deposits in your water, it's important to ensure that the pH alkalinity is properly balanced. A calcium scale will form when the pH levels are too high, so you'll need to bring those levels down.

You can also use a scale preventer regularly, which will help break down existing particles and prevent the problem from occurring again.

How to Get Rid of Flakes in Your Hot Tub

The best way to eliminate flakes in your hot tub is to flush the system and run the pumps at full speed as often as possible. You should also remove the filters to ensure maximum water flow. After flushing the system, drain the hot tub and put the filters back in place. Fill it up with fresh water and see if the problem persists.

If there are still too many flakes, repeat the process or wait until the filters have had a chance to pick up any leftover dust. Be patient—this process takes time. You may also want to consider using a product like O-Care, specifically developed to prevent this problem. O-Care can help make water maintenance easy and hassle-free.

If you're still noticing white flakes in your water, you likely have biofilm or calcium deposits buildup. While a thorough cleaning can eliminate biofilm deposits, removing calcium flakes require a regular balancing of hardness, causing minerals. However, there are a few simple things you can do to keep the flakes away for good:

Tips For Cleaning Up Calcium Flakes In The Water Of Your Hot Tub

So you're experiencing problems with calcium flakes in your hot tub? Not to worry – it's a common issue and can be easily fixed. Here are a few steps you can take to get rid of the excess calcium and restore balance to your water:

pH Effect: First, make sure that the pH alkalinity is properly balanced. A calcium scale will begin to form if your pH is too high so bring those levels down to reduce the hardness of the water.

Try a scale preventer: Hot tub manufacturers and suppliers all make different scale preventers that you can add to your water regularly to reduce calcium buildup. This can be especially important if the water in your area is particularly hard. These treatments often have to be added monthly or quarterly, so check with your supplier for more information.

Balance your water temperature: An unbalanced water temperature contributes to calcium deposits. Make sure that the temperature of your hot tub is consistent, and try not to let it fluctuate too much.

Clean your filter regularly: Finally, clean it regularly and replace it when necessary. A clogged filter will only aggravate the problem of calcium deposits.

However, If you're again noticing calcium flakes in your water, Look no further than O-Care! This specially designed product helps prevent biofilm and calc buildup, making water maintenance easy and hassle-free.

With O-Care, you can enjoy crystal-clear water without any hassles. So if you're looking for a product that will take care of your hot tub for you, look no further than O-Care!

How to Prevent & Get Rid of White Flakes Caused by White Water Mold & Biofilm

Biofilm is a type of bacteria that thrives in warm, moist environments. If left untreated, it can cause skin infections and flaky water. Following regular cleaning, a schedule is the best way to prevent biofilm growth.

Sanitize your hot tub regularly using chlorine or bromine-based sanitizer. Make sure to clean the filters and drain the spa at least once a week. You don't have to worry about biofilm growth if you're on a regular cleaning routine.

flakes in hot tub water
Prevent & Get Rid of White Flakes Caused by White Water Mold & Biofilm

Try Using O-Care

O-Care is an all-natural, enzyme-based treatment that breaks down organic matter and prevents biofilm growth. It's safe and will not affect your hot tub's pH levels.

O-Care is an innovative new product that helps prevent the formation of biofilm. It's a great way to keep your hot tub clean and free of harmful bacteria.

If you already have biofilm in your hot tub, you can get rid of it by draining the spa and cleaning it well. Be sure to use a strong sanitizer to kill any bacteria that may be present. Order O-Care today and start enjoying your hot tub again!

Wrapping up Flakes in your hot tub

Flakes in your hot tub can be annoying, but there's no need to panic. In most cases, they can be easily removed by flushing the system and running the pumps at full speed.

If you still see flakes after taking these steps, simply repeat the process or wait until the filters have had a chance to do their job. With patience and perseverance, you'll soon have sparkling clean hot tub water again!